21587656

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1427}}^1$

素因数の和:1525

約数の個数: 32

約数和(自身を含む): 42497280

約数和(自身を除く): 20909624

約数列:

[1, 2, 4, 8, 31, 61, 62, 122, 124, 244, 248, 488, 1427, 1891, 2854, 3782, 5708, 7564, 11416, 15128, 44237, 87047, 88474, 174094, 176948, 348188, 353896, 696376, 2698457, 5396914, 10793828, 21587656]

約数ペア:

[(1, 21587656), (2, 10793828), (4, 5396914), (8, 2698457), (31, 696376), (61, 353896), (62, 348188), (122, 176948), (124, 174094), (244, 88474), (248, 87047), (488, 44237), (1427, 15128), (1891, 11416), (2854, 7564), (3782, 5708)]