21249728

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{19531}}^1$

素因数の和:19560

約数の個数: 28

約数和(自身を含む): 44650152

約数和(自身を除く): 23400424

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 544, 1088, 19531, 39062, 78124, 156248, 312496, 332027, 624992, 664054, 1249984, 1328108, 2656216, 5312432, 10624864, 21249728]

約数ペア:

[(1, 21249728), (2, 10624864), (4, 5312432), (8, 2656216), (16, 1328108), (17, 1249984), (32, 664054), (34, 624992), (64, 332027), (68, 312496), (136, 156248), (272, 78124), (544, 39062), (1088, 19531)]