21872820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{5441}}^1$

素因数の和:5520

約数の個数: 48

約数和(自身を含む): 62169408

約数和(自身を除く): 40296588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 67, 134, 201, 268, 335, 402, 670, 804, 1005, 1340, 2010, 4020, 5441, 10882, 16323, 21764, 27205, 32646, 54410, 65292, 81615, 108820, 163230, 326460, 364547, 729094, 1093641, 1458188, 1822735, 2187282, 3645470, 4374564, 5468205, 7290940, 10936410, 21872820]

約数ペア:

[(1, 21872820), (2, 10936410), (3, 7290940), (4, 5468205), (5, 4374564), (6, 3645470), (10, 2187282), (12, 1822735), (15, 1458188), (20, 1093641), (30, 729094), (60, 364547), (67, 326460), (134, 163230), (201, 108820), (268, 81615), (335, 65292), (402, 54410), (670, 32646), (804, 27205), (1005, 21764), (1340, 16323), (2010, 10882), (4020, 5441)]