21096240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:219

約数の個数: 160

約数和(自身を含む): 73066752

約数和(自身を除く): 51970512

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 61, 66, 80, 88, 110, 120, 122, 131, 132, 165, 176, 183, 220, 240, 244, 262, 264, 305, 330, 366, 393, 440, 488, 524, 528, 610, 655, 660, 671, 732, 786, 880, 915, 976, 1048, 1220, 1310, 1320, 1342, 1441, 1464, 1572, 1830, 1965, 2013, 2096, 2440, 2620, 2640, 2684, 2882, 2928, 3144, 3355, 3660, 3930, 4026, 4323, 4880, 5240, 5368, 5764, 6288, 6710, 7205, 7320, 7860, 7991, 8052, 8646, 10065, 10480, 10736, 11528, 13420, 14410, 14640, 15720, 15982, 16104, 17292, 20130, 21615, 23056, 23973, 26840, 28820, 31440, 31964, 32208, 34584, 39955, 40260, 43230, 47946, 53680, 57640, 63928, 69168, 79910, 80520, 86460, 87901, 95892, 115280, 119865, 127856, 159820, 161040, 172920, 175802, 191784, 239730, 263703, 319640, 345840, 351604, 383568, 439505, 479460, 527406, 639280, 703208, 879010, 958920, 1054812, 1318515, 1406416, 1758020, 1917840, 2109624, 2637030, 3516040, 4219248, 5274060, 7032080, 10548120, 21096240]

約数ペア:

[(1, 21096240), (2, 10548120), (3, 7032080), (4, 5274060), (5, 4219248), (6, 3516040), (8, 2637030), (10, 2109624), (11, 1917840), (12, 1758020), (15, 1406416), (16, 1318515), (20, 1054812), (22, 958920), (24, 879010), (30, 703208), (33, 639280), (40, 527406), (44, 479460), (48, 439505), (55, 383568), (60, 351604), (61, 345840), (66, 319640), (80, 263703), (88, 239730), (110, 191784), (120, 175802), (122, 172920), (131, 161040), (132, 159820), (165, 127856), (176, 119865), (183, 115280), (220, 95892), (240, 87901), (244, 86460), (262, 80520), (264, 79910), (305, 69168), (330, 63928), (366, 57640), (393, 53680), (440, 47946), (488, 43230), (524, 40260), (528, 39955), (610, 34584), (655, 32208), (660, 31964), (671, 31440), (732, 28820), (786, 26840), (880, 23973), (915, 23056), (976, 21615), (1048, 20130), (1220, 17292), (1310, 16104), (1320, 15982), (1342, 15720), (1441, 14640), (1464, 14410), (1572, 13420), (1830, 11528), (1965, 10736), (2013, 10480), (2096, 10065), (2440, 8646), (2620, 8052), (2640, 7991), (2684, 7860), (2882, 7320), (2928, 7205), (3144, 6710), (3355, 6288), (3660, 5764), (3930, 5368), (4026, 5240), (4323, 4880)]