21582040

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{8053}}^1$

素因数の和:8131

約数の個数: 32

約数和(自身を含む): 49290480

約数和(自身を除く): 27708440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 8053, 16106, 32212, 40265, 64424, 80530, 161060, 322120, 539551, 1079102, 2158204, 2697755, 4316408, 5395510, 10791020, 21582040]

約数ペア:

[(1, 21582040), (2, 10791020), (4, 5395510), (5, 4316408), (8, 2697755), (10, 2158204), (20, 1079102), (40, 539551), (67, 322120), (134, 161060), (268, 80530), (335, 64424), (536, 40265), (670, 32212), (1340, 16106), (2680, 8053)]