21008664

素因数分解:

$2^3\times 3^2\times {\mathrm{431}}^1\times {\mathrm{677}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 57114720

約数和(自身を除く): 36106056

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 431, 677, 862, 1293, 1354, 1724, 2031, 2586, 2708, 3448, 3879, 4062, 5172, 5416, 6093, 7758, 8124, 10344, 12186, 15516, 16248, 24372, 31032, 48744, 291787, 583574, 875361, 1167148, 1750722, 2334296, 2626083, 3501444, 5252166, 7002888, 10504332, 21008664]

約数ペア:

[(1, 21008664), (2, 10504332), (3, 7002888), (4, 5252166), (6, 3501444), (8, 2626083), (9, 2334296), (12, 1750722), (18, 1167148), (24, 875361), (36, 583574), (72, 291787), (431, 48744), (677, 31032), (862, 24372), (1293, 16248), (1354, 15516), (1724, 12186), (2031, 10344), (2586, 8124), (2708, 7758), (3448, 6093), (3879, 5416), (4062, 5172)]