21032520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{3307}}^1$

素因数の和:3374

約数の個数: 64

約数和(自身を含む): 64307520

約数和(自身を除く): 43275000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 53, 60, 106, 120, 159, 212, 265, 318, 424, 530, 636, 795, 1060, 1272, 1590, 2120, 3180, 3307, 6360, 6614, 9921, 13228, 16535, 19842, 26456, 33070, 39684, 49605, 66140, 79368, 99210, 132280, 175271, 198420, 350542, 396840, 525813, 701084, 876355, 1051626, 1402168, 1752710, 2103252, 2629065, 3505420, 4206504, 5258130, 7010840, 10516260, 21032520]

約数ペア:

[(1, 21032520), (2, 10516260), (3, 7010840), (4, 5258130), (5, 4206504), (6, 3505420), (8, 2629065), (10, 2103252), (12, 1752710), (15, 1402168), (20, 1051626), (24, 876355), (30, 701084), (40, 525813), (53, 396840), (60, 350542), (106, 198420), (120, 175271), (159, 132280), (212, 99210), (265, 79368), (318, 66140), (424, 49605), (530, 39684), (636, 33070), (795, 26456), (1060, 19842), (1272, 16535), (1590, 13228), (2120, 9921), (3180, 6614), (3307, 6360)]