21386256

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{10867}}^1$

素因数の和:10919

約数の個数: 40

約数和(自身を含む): 56600544

約数和(自身を除く): 35214288

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968, 10867, 21734, 32601, 43468, 65202, 86936, 130404, 173872, 260808, 445547, 521616, 891094, 1336641, 1782188, 2673282, 3564376, 5346564, 7128752, 10693128, 21386256]

約数ペア:

[(1, 21386256), (2, 10693128), (3, 7128752), (4, 5346564), (6, 3564376), (8, 2673282), (12, 1782188), (16, 1336641), (24, 891094), (41, 521616), (48, 445547), (82, 260808), (123, 173872), (164, 130404), (246, 86936), (328, 65202), (492, 43468), (656, 32601), (984, 21734), (1968, 10867)]