21385512

素因数分解:

$2^3\times 3^3\times {\mathrm{181}}^1\times {\mathrm{547}}^1$

素因数の和:743

約数の個数: 64

約数和(自身を含む): 59841600

約数和(自身を除く): 38456088

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 181, 216, 362, 543, 547, 724, 1086, 1094, 1448, 1629, 1641, 2172, 2188, 3258, 3282, 4344, 4376, 4887, 4923, 6516, 6564, 9774, 9846, 13032, 13128, 14769, 19548, 19692, 29538, 39096, 39384, 59076, 99007, 118152, 198014, 297021, 396028, 594042, 792056, 891063, 1188084, 1782126, 2376168, 2673189, 3564252, 5346378, 7128504, 10692756, 21385512]

約数ペア:

[(1, 21385512), (2, 10692756), (3, 7128504), (4, 5346378), (6, 3564252), (8, 2673189), (9, 2376168), (12, 1782126), (18, 1188084), (24, 891063), (27, 792056), (36, 594042), (54, 396028), (72, 297021), (108, 198014), (181, 118152), (216, 99007), (362, 59076), (543, 39384), (547, 39096), (724, 29538), (1086, 19692), (1094, 19548), (1448, 14769), (1629, 13128), (1641, 13032), (2172, 9846), (2188, 9774), (3258, 6564), (3282, 6516), (4344, 4923), (4376, 4887)]