21176336

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1699}}^1$

素因数の和:1767

約数の個数: 40

約数和(自身を含む): 44268000

約数和(自身を除く): 23091664

約数列:

[1, 2, 4, 8, 16, 19, 38, 41, 76, 82, 152, 164, 304, 328, 656, 779, 1558, 1699, 3116, 3398, 6232, 6796, 12464, 13592, 27184, 32281, 64562, 69659, 129124, 139318, 258248, 278636, 516496, 557272, 1114544, 1323521, 2647042, 5294084, 10588168, 21176336]

約数ペア:

[(1, 21176336), (2, 10588168), (4, 5294084), (8, 2647042), (16, 1323521), (19, 1114544), (38, 557272), (41, 516496), (76, 278636), (82, 258248), (152, 139318), (164, 129124), (304, 69659), (328, 64562), (656, 32281), (779, 27184), (1558, 13592), (1699, 12464), (3116, 6796), (3398, 6232)]