21362120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41081}}^1$

素因数の和:41105

約数の個数: 32

約数和(自身を含む): 51763320

約数和(自身を除く): 30401200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41081, 82162, 164324, 205405, 328648, 410810, 534053, 821620, 1068106, 1643240, 2136212, 2670265, 4272424, 5340530, 10681060, 21362120]

約数ペア:

[(1, 21362120), (2, 10681060), (4, 5340530), (5, 4272424), (8, 2670265), (10, 2136212), (13, 1643240), (20, 1068106), (26, 821620), (40, 534053), (52, 410810), (65, 328648), (104, 205405), (130, 164324), (260, 82162), (520, 41081)]