21455168

素因数分解:

$2^6\times 7^1\times {\mathrm{83}}^1\times {\mathrm{577}}^1$

素因数の和:679

約数の個数: 56

約数和(自身を含む): 49328832

約数和(自身を除く): 27873664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 83, 112, 166, 224, 332, 448, 577, 581, 664, 1154, 1162, 1328, 2308, 2324, 2656, 4039, 4616, 4648, 5312, 8078, 9232, 9296, 16156, 18464, 18592, 32312, 36928, 37184, 47891, 64624, 95782, 129248, 191564, 258496, 335237, 383128, 670474, 766256, 1340948, 1532512, 2681896, 3065024, 5363792, 10727584, 21455168]

約数ペア:

[(1, 21455168), (2, 10727584), (4, 5363792), (7, 3065024), (8, 2681896), (14, 1532512), (16, 1340948), (28, 766256), (32, 670474), (56, 383128), (64, 335237), (83, 258496), (112, 191564), (166, 129248), (224, 95782), (332, 64624), (448, 47891), (577, 37184), (581, 36928), (664, 32312), (1154, 18592), (1162, 18464), (1328, 16156), (2308, 9296), (2324, 9232), (2656, 8078), (4039, 5312), (4616, 4648)]