81461538

素因数分解:

$2^1\times 3^4\times {\mathrm{23}}^1\times {\mathrm{21863}}^1$

素因数の和:21900

約数の個数: 40

約数和(自身を含む): 190479168

約数和(自身を除く): 109017630

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 81, 138, 162, 207, 414, 621, 1242, 1863, 3726, 21863, 43726, 65589, 131178, 196767, 393534, 502849, 590301, 1005698, 1180602, 1508547, 1770903, 3017094, 3541806, 4525641, 9051282, 13576923, 27153846, 40730769, 81461538]

約数ペア:

[(1, 81461538), (2, 40730769), (3, 27153846), (6, 13576923), (9, 9051282), (18, 4525641), (23, 3541806), (27, 3017094), (46, 1770903), (54, 1508547), (69, 1180602), (81, 1005698), (138, 590301), (162, 502849), (207, 393534), (414, 196767), (621, 131178), (1242, 65589), (1863, 43726), (3726, 21863)]