21385490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{17971}}^1$

素因数の和:18002

約数の個数: 32

約数和(自身を含む): 46583424

約数和(自身を除く): 25197934

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 595, 1190, 17971, 35942, 89855, 125797, 179710, 251594, 305507, 611014, 628985, 1257970, 1527535, 2138549, 3055070, 4277098, 10692745, 21385490]

約数ペア:

[(1, 21385490), (2, 10692745), (5, 4277098), (7, 3055070), (10, 2138549), (14, 1527535), (17, 1257970), (34, 628985), (35, 611014), (70, 305507), (85, 251594), (119, 179710), (170, 125797), (238, 89855), (595, 35942), (1190, 17971)]