21045664

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{12409}}^1$

素因数の和:12472

約数の個数: 24

約数和(自身を含む): 42218820

約数和(自身を除く): 21173156

約数列:

[1, 2, 4, 8, 16, 32, 53, 106, 212, 424, 848, 1696, 12409, 24818, 49636, 99272, 198544, 397088, 657677, 1315354, 2630708, 5261416, 10522832, 21045664]

約数ペア:

[(1, 21045664), (2, 10522832), (4, 5261416), (8, 2630708), (16, 1315354), (32, 657677), (53, 397088), (106, 198544), (212, 99272), (424, 49636), (848, 24818), (1696, 12409)]