20863472

素因数分解:

$2^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1709}}^1$

素因数の和:1833

約数の個数: 40

約数和(自身を含む): 46648800

約数和(自身を除く): 25785328

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 218, 436, 763, 872, 1526, 1709, 1744, 3052, 3418, 6104, 6836, 11963, 12208, 13672, 23926, 27344, 47852, 95704, 186281, 191408, 372562, 745124, 1303967, 1490248, 2607934, 2980496, 5215868, 10431736, 20863472]

約数ペア:

[(1, 20863472), (2, 10431736), (4, 5215868), (7, 2980496), (8, 2607934), (14, 1490248), (16, 1303967), (28, 745124), (56, 372562), (109, 191408), (112, 186281), (218, 95704), (436, 47852), (763, 27344), (872, 23926), (1526, 13672), (1709, 12208), (1744, 11963), (3052, 6836), (3418, 6104)]