21188640

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4013}}^1$

素因数の和:4042

約数の個数: 96

約数和(自身を含む): 72830016

約数和(自身を除く): 51641376

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 220, 240, 264, 330, 352, 440, 480, 528, 660, 880, 1056, 1320, 1760, 2640, 4013, 5280, 8026, 12039, 16052, 20065, 24078, 32104, 40130, 44143, 48156, 60195, 64208, 80260, 88286, 96312, 120390, 128416, 132429, 160520, 176572, 192624, 220715, 240780, 264858, 321040, 353144, 385248, 441430, 481560, 529716, 642080, 662145, 706288, 882860, 963120, 1059432, 1324290, 1412576, 1765720, 1926240, 2118864, 2648580, 3531440, 4237728, 5297160, 7062880, 10594320, 21188640]

約数ペア:

[(1, 21188640), (2, 10594320), (3, 7062880), (4, 5297160), (5, 4237728), (6, 3531440), (8, 2648580), (10, 2118864), (11, 1926240), (12, 1765720), (15, 1412576), (16, 1324290), (20, 1059432), (22, 963120), (24, 882860), (30, 706288), (32, 662145), (33, 642080), (40, 529716), (44, 481560), (48, 441430), (55, 385248), (60, 353144), (66, 321040), (80, 264858), (88, 240780), (96, 220715), (110, 192624), (120, 176572), (132, 160520), (160, 132429), (165, 128416), (176, 120390), (220, 96312), (240, 88286), (264, 80260), (330, 64208), (352, 60195), (440, 48156), (480, 44143), (528, 40130), (660, 32104), (880, 24078), (1056, 20065), (1320, 16052), (1760, 12039), (2640, 8026), (4013, 5280)]