21090630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{809}}^1$

素因数の和:909

約数の個数: 64

約数和(自身を含む): 55987200

約数和(自身を除く): 34896570

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 79, 110, 158, 165, 237, 330, 395, 474, 790, 809, 869, 1185, 1618, 1738, 2370, 2427, 2607, 4045, 4345, 4854, 5214, 8090, 8690, 8899, 12135, 13035, 17798, 24270, 26070, 26697, 44495, 53394, 63911, 88990, 127822, 133485, 191733, 266970, 319555, 383466, 639110, 703021, 958665, 1406042, 1917330, 2109063, 3515105, 4218126, 7030210, 10545315, 21090630]

約数ペア:

[(1, 21090630), (2, 10545315), (3, 7030210), (5, 4218126), (6, 3515105), (10, 2109063), (11, 1917330), (15, 1406042), (22, 958665), (30, 703021), (33, 639110), (55, 383466), (66, 319555), (79, 266970), (110, 191733), (158, 133485), (165, 127822), (237, 88990), (330, 63911), (395, 53394), (474, 44495), (790, 26697), (809, 26070), (869, 24270), (1185, 17798), (1618, 13035), (1738, 12135), (2370, 8899), (2427, 8690), (2607, 8090), (4045, 5214), (4345, 4854)]