21317625

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{2707}}^1$

素因数の和:2735

約数の個数: 48

約数和(自身を含む): 43934592

約数和(自身を除く): 22616967

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 125, 175, 225, 315, 375, 525, 875, 1125, 1575, 2625, 2707, 7875, 8121, 13535, 18949, 24363, 40605, 56847, 67675, 94745, 121815, 170541, 203025, 284235, 338375, 473725, 609075, 852705, 1015125, 1421175, 2368625, 3045375, 4263525, 7105875, 21317625]

約数ペア:

[(1, 21317625), (3, 7105875), (5, 4263525), (7, 3045375), (9, 2368625), (15, 1421175), (21, 1015125), (25, 852705), (35, 609075), (45, 473725), (63, 338375), (75, 284235), (105, 203025), (125, 170541), (175, 121815), (225, 94745), (315, 67675), (375, 56847), (525, 40605), (875, 24363), (1125, 18949), (1575, 13535), (2625, 8121), (2707, 7875)]