21102840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^2$

素因数の和:174

約数の個数: 144

約数和(自身を含む): 75858120

約数和(自身を除く): 54755280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 73, 88, 90, 99, 110, 120, 132, 146, 165, 180, 198, 219, 220, 264, 292, 330, 360, 365, 396, 438, 440, 495, 584, 657, 660, 730, 792, 803, 876, 990, 1095, 1314, 1320, 1460, 1606, 1752, 1980, 2190, 2409, 2628, 2920, 3212, 3285, 3960, 4015, 4380, 4818, 5256, 5329, 6424, 6570, 7227, 8030, 8760, 9636, 10658, 12045, 13140, 14454, 15987, 16060, 19272, 21316, 24090, 26280, 26645, 28908, 31974, 32120, 36135, 42632, 47961, 48180, 53290, 57816, 58619, 63948, 72270, 79935, 95922, 96360, 106580, 117238, 127896, 144540, 159870, 175857, 191844, 213160, 234476, 239805, 289080, 293095, 319740, 351714, 383688, 468952, 479610, 527571, 586190, 639480, 703428, 879285, 959220, 1055142, 1172380, 1406856, 1758570, 1918440, 2110284, 2344760, 2637855, 3517140, 4220568, 5275710, 7034280, 10551420, 21102840]

約数ペア:

[(1, 21102840), (2, 10551420), (3, 7034280), (4, 5275710), (5, 4220568), (6, 3517140), (8, 2637855), (9, 2344760), (10, 2110284), (11, 1918440), (12, 1758570), (15, 1406856), (18, 1172380), (20, 1055142), (22, 959220), (24, 879285), (30, 703428), (33, 639480), (36, 586190), (40, 527571), (44, 479610), (45, 468952), (55, 383688), (60, 351714), (66, 319740), (72, 293095), (73, 289080), (88, 239805), (90, 234476), (99, 213160), (110, 191844), (120, 175857), (132, 159870), (146, 144540), (165, 127896), (180, 117238), (198, 106580), (219, 96360), (220, 95922), (264, 79935), (292, 72270), (330, 63948), (360, 58619), (365, 57816), (396, 53290), (438, 48180), (440, 47961), (495, 42632), (584, 36135), (657, 32120), (660, 31974), (730, 28908), (792, 26645), (803, 26280), (876, 24090), (990, 21316), (1095, 19272), (1314, 16060), (1320, 15987), (1460, 14454), (1606, 13140), (1752, 12045), (1980, 10658), (2190, 9636), (2409, 8760), (2628, 8030), (2920, 7227), (3212, 6570), (3285, 6424), (3960, 5329), (4015, 5256), (4380, 4818)]