17921475

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1$

素因数の和:597

約数の個数: 72

約数和(自身を含む): 37778832

約数和(自身を除く): 19857357

約数列:

[1, 3, 5, 9, 11, 13, 15, 25, 33, 39, 45, 55, 65, 75, 99, 117, 143, 165, 195, 225, 275, 325, 429, 495, 557, 585, 715, 825, 975, 1287, 1671, 2145, 2475, 2785, 2925, 3575, 5013, 6127, 6435, 7241, 8355, 10725, 13925, 18381, 21723, 25065, 30635, 32175, 36205, 41775, 55143, 65169, 79651, 91905, 108615, 125325, 153175, 181025, 238953, 275715, 325845, 398255, 459525, 543075, 716859, 1194765, 1378575, 1629225, 1991275, 3584295, 5973825, 17921475]

約数ペア:

[(1, 17921475), (3, 5973825), (5, 3584295), (9, 1991275), (11, 1629225), (13, 1378575), (15, 1194765), (25, 716859), (33, 543075), (39, 459525), (45, 398255), (55, 325845), (65, 275715), (75, 238953), (99, 181025), (117, 153175), (143, 125325), (165, 108615), (195, 91905), (225, 79651), (275, 65169), (325, 55143), (429, 41775), (495, 36205), (557, 32175), (585, 30635), (715, 25065), (825, 21723), (975, 18381), (1287, 13925), (1671, 10725), (2145, 8355), (2475, 7241), (2785, 6435), (2925, 6127), (3575, 5013)]