21381336

素因数分解:

$2^3\times 3^2\times {\mathrm{41}}^1\times {\mathrm{7243}}^1$

素因数の和:7296

約数の個数: 48

約数和(自身を含む): 59328360

約数和(自身を除く): 37947024

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 41, 72, 82, 123, 164, 246, 328, 369, 492, 738, 984, 1476, 2952, 7243, 14486, 21729, 28972, 43458, 57944, 65187, 86916, 130374, 173832, 260748, 296963, 521496, 593926, 890889, 1187852, 1781778, 2375704, 2672667, 3563556, 5345334, 7127112, 10690668, 21381336]

約数ペア:

[(1, 21381336), (2, 10690668), (3, 7127112), (4, 5345334), (6, 3563556), (8, 2672667), (9, 2375704), (12, 1781778), (18, 1187852), (24, 890889), (36, 593926), (41, 521496), (72, 296963), (82, 260748), (123, 173832), (164, 130374), (246, 86916), (328, 65187), (369, 57944), (492, 43458), (738, 28972), (984, 21729), (1476, 14486), (2952, 7243)]