21786056

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{821}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 42612480

約数和(自身を除く): 20826424

約数列:

[1, 2, 4, 8, 31, 62, 107, 124, 214, 248, 428, 821, 856, 1642, 3284, 3317, 6568, 6634, 13268, 25451, 26536, 50902, 87847, 101804, 175694, 203608, 351388, 702776, 2723257, 5446514, 10893028, 21786056]

約数ペア:

[(1, 21786056), (2, 10893028), (4, 5446514), (8, 2723257), (31, 702776), (62, 351388), (107, 203608), (124, 175694), (214, 101804), (248, 87847), (428, 50902), (821, 26536), (856, 25451), (1642, 13268), (3284, 6634), (3317, 6568)]