21341520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29641}}^1$

素因数の和:29660

約数の個数: 60

約数和(自身を含む): 71674356

約数和(自身を除く): 50332836

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29641, 59282, 88923, 118564, 148205, 177846, 237128, 266769, 296410, 355692, 444615, 474256, 533538, 592820, 711384, 889230, 1067076, 1185640, 1333845, 1422768, 1778460, 2134152, 2371280, 2667690, 3556920, 4268304, 5335380, 7113840, 10670760, 21341520]

約数ペア:

[(1, 21341520), (2, 10670760), (3, 7113840), (4, 5335380), (5, 4268304), (6, 3556920), (8, 2667690), (9, 2371280), (10, 2134152), (12, 1778460), (15, 1422768), (16, 1333845), (18, 1185640), (20, 1067076), (24, 889230), (30, 711384), (36, 592820), (40, 533538), (45, 474256), (48, 444615), (60, 355692), (72, 296410), (80, 266769), (90, 237128), (120, 177846), (144, 148205), (180, 118564), (240, 88923), (360, 59282), (720, 29641)]