21845220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{577}}^1\times {\mathrm{631}}^1$

素因数の和:1220

約数の個数: 48

約数和(自身を含む): 61369728

約数和(自身を除く): 39524508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 577, 631, 1154, 1262, 1731, 1893, 2308, 2524, 2885, 3155, 3462, 3786, 5770, 6310, 6924, 7572, 8655, 9465, 11540, 12620, 17310, 18930, 34620, 37860, 364087, 728174, 1092261, 1456348, 1820435, 2184522, 3640870, 4369044, 5461305, 7281740, 10922610, 21845220]

約数ペア:

[(1, 21845220), (2, 10922610), (3, 7281740), (4, 5461305), (5, 4369044), (6, 3640870), (10, 2184522), (12, 1820435), (15, 1456348), (20, 1092261), (30, 728174), (60, 364087), (577, 37860), (631, 34620), (1154, 18930), (1262, 17310), (1731, 12620), (1893, 11540), (2308, 9465), (2524, 8655), (2885, 7572), (3155, 6924), (3462, 6310), (3786, 5770)]