21855472

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4229}}^1$

素因数の和:4273

約数の個数: 40

約数和(自身を含む): 47206800

約数和(自身を除く): 25351328

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 4229, 5168, 8458, 16916, 33832, 67664, 71893, 80351, 143786, 160702, 287572, 321404, 575144, 642808, 1150288, 1285616, 1365967, 2731934, 5463868, 10927736, 21855472]

約数ペア:

[(1, 21855472), (2, 10927736), (4, 5463868), (8, 2731934), (16, 1365967), (17, 1285616), (19, 1150288), (34, 642808), (38, 575144), (68, 321404), (76, 287572), (136, 160702), (152, 143786), (272, 80351), (304, 71893), (323, 67664), (646, 33832), (1292, 16916), (2584, 8458), (4229, 5168)]