21534256

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{359}}^1$

素因数の和:553

約数の個数: 40

約数和(自身を含む): 43925760

約数和(自身を除く): 22391504

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 163, 184, 326, 359, 368, 652, 718, 1304, 1436, 2608, 2872, 3749, 5744, 7498, 8257, 14996, 16514, 29992, 33028, 58517, 59984, 66056, 117034, 132112, 234068, 468136, 936272, 1345891, 2691782, 5383564, 10767128, 21534256]

約数ペア:

[(1, 21534256), (2, 10767128), (4, 5383564), (8, 2691782), (16, 1345891), (23, 936272), (46, 468136), (92, 234068), (163, 132112), (184, 117034), (326, 66056), (359, 59984), (368, 58517), (652, 33028), (718, 29992), (1304, 16514), (1436, 14996), (2608, 8257), (2872, 7498), (3749, 5744)]