21883640

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{5113}}^1$

素因数の和:5231

約数の個数: 32

約数和(自身を含む): 49708080

約数和(自身を除く): 27824440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 5113, 10226, 20452, 25565, 40904, 51130, 102260, 204520, 547091, 1094182, 2188364, 2735455, 4376728, 5470910, 10941820, 21883640]

約数ペア:

[(1, 21883640), (2, 10941820), (4, 5470910), (5, 4376728), (8, 2735455), (10, 2188364), (20, 1094182), (40, 547091), (107, 204520), (214, 102260), (428, 51130), (535, 40904), (856, 25565), (1070, 20452), (2140, 10226), (4280, 5113)]