20391872

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{10987}}^1$

素因数の和:11028

約数の個数: 28

約数和(自身を含む): 41864280

約数和(自身を除く): 21472408

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 232, 464, 928, 1856, 10987, 21974, 43948, 87896, 175792, 318623, 351584, 637246, 703168, 1274492, 2548984, 5097968, 10195936, 20391872]

約数ペア:

[(1, 20391872), (2, 10195936), (4, 5097968), (8, 2548984), (16, 1274492), (29, 703168), (32, 637246), (58, 351584), (64, 318623), (116, 175792), (232, 87896), (464, 43948), (928, 21974), (1856, 10987)]