21712710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{631}}^1$

素因数の和:709

約数の個数: 64

約数和(自身を含む): 55332864

約数和(自身を除く): 33620154

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 37, 62, 74, 93, 111, 155, 185, 186, 222, 310, 370, 465, 555, 631, 930, 1110, 1147, 1262, 1893, 2294, 3155, 3441, 3786, 5735, 6310, 6882, 9465, 11470, 17205, 18930, 19561, 23347, 34410, 39122, 46694, 58683, 70041, 97805, 116735, 117366, 140082, 195610, 233470, 293415, 350205, 586830, 700410, 723757, 1447514, 2171271, 3618785, 4342542, 7237570, 10856355, 21712710]

約数ペア:

[(1, 21712710), (2, 10856355), (3, 7237570), (5, 4342542), (6, 3618785), (10, 2171271), (15, 1447514), (30, 723757), (31, 700410), (37, 586830), (62, 350205), (74, 293415), (93, 233470), (111, 195610), (155, 140082), (185, 117366), (186, 116735), (222, 97805), (310, 70041), (370, 58683), (465, 46694), (555, 39122), (631, 34410), (930, 23347), (1110, 19561), (1147, 18930), (1262, 17205), (1893, 11470), (2294, 9465), (3155, 6882), (3441, 6310), (3786, 5735)]