21596925

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1327}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 42156032

約数和(自身を除く): 20559107

約数列:

[1, 3, 5, 7, 15, 21, 25, 31, 35, 75, 93, 105, 155, 175, 217, 465, 525, 651, 775, 1085, 1327, 2325, 3255, 3981, 5425, 6635, 9289, 16275, 19905, 27867, 33175, 41137, 46445, 99525, 123411, 139335, 205685, 232225, 287959, 617055, 696675, 863877, 1028425, 1439795, 3085275, 4319385, 7198975, 21596925]

約数ペア:

[(1, 21596925), (3, 7198975), (5, 4319385), (7, 3085275), (15, 1439795), (21, 1028425), (25, 863877), (31, 696675), (35, 617055), (75, 287959), (93, 232225), (105, 205685), (155, 139335), (175, 123411), (217, 99525), (465, 46445), (525, 41137), (651, 33175), (775, 27867), (1085, 19905), (1327, 16275), (2325, 9289), (3255, 6635), (3981, 5425)]