21567260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7541}}^1$

素因数の和:7574

約数の個数: 48

約数和(自身を含む): 53216352

約数和(自身を除く): 31649092

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 7541, 15082, 30164, 37705, 75410, 82951, 98033, 150820, 165902, 196066, 331804, 392132, 414755, 490165, 829510, 980330, 1078363, 1659020, 1960660, 2156726, 4313452, 5391815, 10783630, 21567260]

約数ペア:

[(1, 21567260), (2, 10783630), (4, 5391815), (5, 4313452), (10, 2156726), (11, 1960660), (13, 1659020), (20, 1078363), (22, 980330), (26, 829510), (44, 490165), (52, 414755), (55, 392132), (65, 331804), (110, 196066), (130, 165902), (143, 150820), (220, 98033), (260, 82951), (286, 75410), (572, 37705), (715, 30164), (1430, 15082), (2860, 7541)]