21495500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{3307}}^1$

素因数の和:3339

約数の個数: 48

約数和(自身を含む): 50572704

約数和(自身を除く): 29077204

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3250, 3307, 6500, 6614, 13228, 16535, 33070, 42991, 66140, 82675, 85982, 165350, 171964, 214955, 330700, 413375, 429910, 826750, 859820, 1074775, 1653500, 2149550, 4299100, 5373875, 10747750, 21495500]

約数ペア:

[(1, 21495500), (2, 10747750), (4, 5373875), (5, 4299100), (10, 2149550), (13, 1653500), (20, 1074775), (25, 859820), (26, 826750), (50, 429910), (52, 413375), (65, 330700), (100, 214955), (125, 171964), (130, 165350), (250, 85982), (260, 82675), (325, 66140), (500, 42991), (650, 33070), (1300, 16535), (1625, 13228), (3250, 6614), (3307, 6500)]