21508968

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^2\times {\mathrm{5303}}^1$

素因数の和:5338

約数の個数: 48

約数和(自身を含む): 58237920

約数和(自身を除く): 36728952

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 169, 312, 338, 507, 676, 1014, 1352, 2028, 4056, 5303, 10606, 15909, 21212, 31818, 42424, 63636, 68939, 127272, 137878, 206817, 275756, 413634, 551512, 827268, 896207, 1654536, 1792414, 2688621, 3584828, 5377242, 7169656, 10754484, 21508968]

約数ペア:

[(1, 21508968), (2, 10754484), (3, 7169656), (4, 5377242), (6, 3584828), (8, 2688621), (12, 1792414), (13, 1654536), (24, 896207), (26, 827268), (39, 551512), (52, 413634), (78, 275756), (104, 206817), (156, 137878), (169, 127272), (312, 68939), (338, 63636), (507, 42424), (676, 31818), (1014, 21212), (1352, 15909), (2028, 10606), (4056, 5303)]