21852440

素因数分解:

$2^3\times 5^1\times {\mathrm{659}}^1\times {\mathrm{829}}^1$

素因数の和:1499

約数の個数: 32

約数和(自身を含む): 49302000

約数和(自身を除く): 27449560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 659, 829, 1318, 1658, 2636, 3295, 3316, 4145, 5272, 6590, 6632, 8290, 13180, 16580, 26360, 33160, 546311, 1092622, 2185244, 2731555, 4370488, 5463110, 10926220, 21852440]

約数ペア:

[(1, 21852440), (2, 10926220), (4, 5463110), (5, 4370488), (8, 2731555), (10, 2185244), (20, 1092622), (40, 546311), (659, 33160), (829, 26360), (1318, 16580), (1658, 13180), (2636, 8290), (3295, 6632), (3316, 6590), (4145, 5272)]