21813008

素因数分解:

$2^4\times 7^1\times {\mathrm{59}}^1\times {\mathrm{3301}}^1$

素因数の和:3375

約数の個数: 40

約数和(自身を含む): 49133760

約数和(自身を除く): 27320752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 59, 112, 118, 236, 413, 472, 826, 944, 1652, 3301, 3304, 6602, 6608, 13204, 23107, 26408, 46214, 52816, 92428, 184856, 194759, 369712, 389518, 779036, 1363313, 1558072, 2726626, 3116144, 5453252, 10906504, 21813008]

約数ペア:

[(1, 21813008), (2, 10906504), (4, 5453252), (7, 3116144), (8, 2726626), (14, 1558072), (16, 1363313), (28, 779036), (56, 389518), (59, 369712), (112, 194759), (118, 184856), (236, 92428), (413, 52816), (472, 46214), (826, 26408), (944, 23107), (1652, 13204), (3301, 6608), (3304, 6602)]