21405376

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{10789}}^1$

素因数の和:10832

約数の個数: 28

約数和(自身を含む): 43850560

約数和(自身を除く): 22445184

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 496, 992, 1984, 10789, 21578, 43156, 86312, 172624, 334459, 345248, 668918, 690496, 1337836, 2675672, 5351344, 10702688, 21405376]

約数ペア:

[(1, 21405376), (2, 10702688), (4, 5351344), (8, 2675672), (16, 1337836), (31, 690496), (32, 668918), (62, 345248), (64, 334459), (124, 172624), (248, 86312), (496, 43156), (992, 21578), (1984, 10789)]