21589112

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 41472000

約数和(自身を除く): 19882888

約数列:

[1, 2, 4, 8, 71, 142, 191, 199, 284, 382, 398, 568, 764, 796, 1528, 1592, 13561, 14129, 27122, 28258, 38009, 54244, 56516, 76018, 108488, 113032, 152036, 304072, 2698639, 5397278, 10794556, 21589112]

約数ペア:

[(1, 21589112), (2, 10794556), (4, 5397278), (8, 2698639), (71, 304072), (142, 152036), (191, 113032), (199, 108488), (284, 76018), (382, 56516), (398, 54244), (568, 38009), (764, 28258), (796, 27122), (1528, 14129), (1592, 13561)]