21228610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2677}}^1$

素因数の和:2758

約数の個数: 32

約数和(自身を含む): 41841072

約数和(自身を除く): 20612462

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 2677, 3965, 5354, 7930, 13385, 26770, 34801, 69602, 163297, 174005, 326594, 348010, 816485, 1632970, 2122861, 4245722, 10614305, 21228610]

約数ペア:

[(1, 21228610), (2, 10614305), (5, 4245722), (10, 2122861), (13, 1632970), (26, 816485), (61, 348010), (65, 326594), (122, 174005), (130, 163297), (305, 69602), (610, 34801), (793, 26770), (1586, 13385), (2677, 7930), (3965, 5354)]