21459646

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{491}}^1$

素因数の和:588

約数の個数: 24

約数和(自身を含む): 35604072

約数和(自身を除く): 14144426

約数列:

[1, 2, 13, 26, 41, 82, 491, 533, 982, 1066, 1681, 3362, 6383, 12766, 20131, 21853, 40262, 43706, 261703, 523406, 825371, 1650742, 10729823, 21459646]

約数ペア:

[(1, 21459646), (2, 10729823), (13, 1650742), (26, 825371), (41, 523406), (82, 261703), (491, 43706), (533, 40262), (982, 21853), (1066, 20131), (1681, 12766), (3362, 6383)]