20483925

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3547}}^1$

素因数の和:3578

約数の個数: 48

約数和(自身を含む): 42235392

約数和(自身を除く): 21751467

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 165, 175, 231, 275, 385, 525, 825, 1155, 1925, 3547, 5775, 10641, 17735, 24829, 39017, 53205, 74487, 88675, 117051, 124145, 195085, 266025, 273119, 372435, 585255, 620725, 819357, 975425, 1365595, 1862175, 2926275, 4096785, 6827975, 20483925]

約数ペア:

[(1, 20483925), (3, 6827975), (5, 4096785), (7, 2926275), (11, 1862175), (15, 1365595), (21, 975425), (25, 819357), (33, 620725), (35, 585255), (55, 372435), (75, 273119), (77, 266025), (105, 195085), (165, 124145), (175, 117051), (231, 88675), (275, 74487), (385, 53205), (525, 39017), (825, 24829), (1155, 17735), (1925, 10641), (3547, 5775)]