21871736

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3889}}^1$

素因数の和:3951

約数の個数: 32

約数和(自身を含む): 44346000

約数和(自身を除く): 22474264

約数列:

[1, 2, 4, 8, 19, 37, 38, 74, 76, 148, 152, 296, 703, 1406, 2812, 3889, 5624, 7778, 15556, 31112, 73891, 143893, 147782, 287786, 295564, 575572, 591128, 1151144, 2733967, 5467934, 10935868, 21871736]

約数ペア:

[(1, 21871736), (2, 10935868), (4, 5467934), (8, 2733967), (19, 1151144), (37, 591128), (38, 575572), (74, 295564), (76, 287786), (148, 147782), (152, 143893), (296, 73891), (703, 31112), (1406, 15556), (2812, 7778), (3889, 5624)]