20871378

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{857}}^1$

素因数の和:920

約数の個数: 64

約数和(自身を含む): 51891840

約数和(自身を除く): 31020462

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 41, 54, 66, 82, 99, 123, 198, 246, 297, 369, 451, 594, 738, 857, 902, 1107, 1353, 1714, 2214, 2571, 2706, 4059, 5142, 7713, 8118, 9427, 12177, 15426, 18854, 23139, 24354, 28281, 35137, 46278, 56562, 70274, 84843, 105411, 169686, 210822, 254529, 316233, 386507, 509058, 632466, 773014, 948699, 1159521, 1897398, 2319042, 3478563, 6957126, 10435689, 20871378]

約数ペア:

[(1, 20871378), (2, 10435689), (3, 6957126), (6, 3478563), (9, 2319042), (11, 1897398), (18, 1159521), (22, 948699), (27, 773014), (33, 632466), (41, 509058), (54, 386507), (66, 316233), (82, 254529), (99, 210822), (123, 169686), (198, 105411), (246, 84843), (297, 70274), (369, 56562), (451, 46278), (594, 35137), (738, 28281), (857, 24354), (902, 23139), (1107, 18854), (1353, 15426), (1714, 12177), (2214, 9427), (2571, 8118), (2706, 7713), (4059, 5142)]