21036705

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{331}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 35696640

約数和(自身を除く): 14659935

約数列:

[1, 3, 5, 15, 19, 57, 95, 223, 285, 331, 669, 993, 1115, 1655, 3345, 4237, 4965, 6289, 12711, 18867, 21185, 31445, 63555, 73813, 94335, 221439, 369065, 1107195, 1402447, 4207341, 7012235, 21036705]

約数ペア:

[(1, 21036705), (3, 7012235), (5, 4207341), (15, 1402447), (19, 1107195), (57, 369065), (95, 221439), (223, 94335), (285, 73813), (331, 63555), (669, 31445), (993, 21185), (1115, 18867), (1655, 12711), (3345, 6289), (4237, 4965)]