18235984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1201}}^1$

素因数の和:1295

約数の個数: 40

約数和(自身を含む): 38603432

約数和(自身を除く): 20367448

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 73, 104, 146, 208, 292, 584, 949, 1168, 1201, 1898, 2402, 3796, 4804, 7592, 9608, 15184, 15613, 19216, 31226, 62452, 87673, 124904, 175346, 249808, 350692, 701384, 1139749, 1402768, 2279498, 4558996, 9117992, 18235984]

約数ペア:

[(1, 18235984), (2, 9117992), (4, 4558996), (8, 2279498), (13, 1402768), (16, 1139749), (26, 701384), (52, 350692), (73, 249808), (104, 175346), (146, 124904), (208, 87673), (292, 62452), (584, 31226), (949, 19216), (1168, 15613), (1201, 15184), (1898, 9608), (2402, 7592), (3796, 4804)]