21463984

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16981}}^1$

素因数の和:17068

約数の個数: 20

約数和(自身を含む): 42115360

約数和(自身を除く): 20651376

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16981, 33962, 67924, 135848, 271696, 1341499, 2682998, 5365996, 10731992, 21463984]

約数ペア:

[(1, 21463984), (2, 10731992), (4, 5365996), (8, 2682998), (16, 1341499), (79, 271696), (158, 135848), (316, 67924), (632, 33962), (1264, 16981)]