19734975

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^2\times {\mathrm{173}}^1$

素因数の和:218

約数の個数: 72

約数和(自身を含む): 39484080

約数和(自身を除く): 19749105

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 135, 169, 173, 195, 225, 325, 351, 507, 519, 585, 675, 845, 865, 975, 1521, 1557, 1755, 2249, 2535, 2595, 2925, 4225, 4325, 4563, 4671, 6747, 7605, 7785, 8775, 11245, 12675, 12975, 20241, 22815, 23355, 29237, 33735, 38025, 38925, 56225, 60723, 87711, 101205, 114075, 116775, 146185, 168675, 263133, 303615, 438555, 506025, 730925, 789399, 1315665, 1518075, 2192775, 3946995, 6578325, 19734975]

約数ペア:

[(1, 19734975), (3, 6578325), (5, 3946995), (9, 2192775), (13, 1518075), (15, 1315665), (25, 789399), (27, 730925), (39, 506025), (45, 438555), (65, 303615), (75, 263133), (117, 168675), (135, 146185), (169, 116775), (173, 114075), (195, 101205), (225, 87711), (325, 60723), (351, 56225), (507, 38925), (519, 38025), (585, 33735), (675, 29237), (845, 23355), (865, 22815), (975, 20241), (1521, 12975), (1557, 12675), (1755, 11245), (2249, 8775), (2535, 7785), (2595, 7605), (2925, 6747), (4225, 4671), (4325, 4563)]