19986525

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{6833}}^1$

素因数の和:6862

約数の個数: 36

約数和(自身を含む): 38557428

約数和(自身を除く): 18570903

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 6833, 20499, 34165, 61497, 88829, 102495, 170825, 266487, 307485, 444145, 512475, 799461, 1332435, 1537425, 2220725, 3997305, 6662175, 19986525]

約数ペア:

[(1, 19986525), (3, 6662175), (5, 3997305), (9, 2220725), (13, 1537425), (15, 1332435), (25, 799461), (39, 512475), (45, 444145), (65, 307485), (75, 266487), (117, 170825), (195, 102495), (225, 88829), (325, 61497), (585, 34165), (975, 20499), (2925, 6833)]