21430370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9697}}^1$

素因数の和:9734

約数の個数: 32

約数和(自身を含む): 43990128

約数和(自身を除く): 22559758

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 9697, 19394, 48485, 96970, 126061, 164849, 252122, 329698, 630305, 824245, 1260610, 1648490, 2143037, 4286074, 10715185, 21430370]

約数ペア:

[(1, 21430370), (2, 10715185), (5, 4286074), (10, 2143037), (13, 1648490), (17, 1260610), (26, 824245), (34, 630305), (65, 329698), (85, 252122), (130, 164849), (170, 126061), (221, 96970), (442, 48485), (1105, 19394), (2210, 9697)]