21018768

素因数分解:

$2^4\times 3^1\times {\mathrm{397}}^1\times {\mathrm{1103}}^1$

素因数の和:1511

約数の個数: 40

約数和(自身を含む): 54484608

約数和(自身を除く): 33465840

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 397, 794, 1103, 1191, 1588, 2206, 2382, 3176, 3309, 4412, 4764, 6352, 6618, 8824, 9528, 13236, 17648, 19056, 26472, 52944, 437891, 875782, 1313673, 1751564, 2627346, 3503128, 5254692, 7006256, 10509384, 21018768]

約数ペア:

[(1, 21018768), (2, 10509384), (3, 7006256), (4, 5254692), (6, 3503128), (8, 2627346), (12, 1751564), (16, 1313673), (24, 875782), (48, 437891), (397, 52944), (794, 26472), (1103, 19056), (1191, 17648), (1588, 13236), (2206, 9528), (2382, 8824), (3176, 6618), (3309, 6352), (4412, 4764)]