21926475

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 43330560

約数和(自身を除く): 21404085

約数列:

[1, 3, 5, 9, 15, 19, 23, 25, 45, 57, 69, 75, 95, 115, 171, 207, 223, 225, 285, 345, 437, 475, 575, 669, 855, 1035, 1115, 1311, 1425, 1725, 2007, 2185, 3345, 3933, 4237, 4275, 5129, 5175, 5575, 6555, 10035, 10925, 12711, 15387, 16725, 19665, 21185, 25645, 32775, 38133, 46161, 50175, 63555, 76935, 97451, 98325, 105925, 128225, 190665, 230805, 292353, 317775, 384675, 487255, 877059, 953325, 1154025, 1461765, 2436275, 4385295, 7308825, 21926475]

約数ペア:

[(1, 21926475), (3, 7308825), (5, 4385295), (9, 2436275), (15, 1461765), (19, 1154025), (23, 953325), (25, 877059), (45, 487255), (57, 384675), (69, 317775), (75, 292353), (95, 230805), (115, 190665), (171, 128225), (207, 105925), (223, 98325), (225, 97451), (285, 76935), (345, 63555), (437, 50175), (475, 46161), (575, 38133), (669, 32775), (855, 25645), (1035, 21185), (1115, 19665), (1311, 16725), (1425, 15387), (1725, 12711), (2007, 10925), (2185, 10035), (3345, 6555), (3933, 5575), (4237, 5175), (4275, 5129)]