21025404

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{379}}^1$

素因数の和:479

約数の個数: 72

約数和(自身を含む): 56434560

約数和(自身を除く): 35409156

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 67, 69, 92, 134, 138, 201, 207, 268, 276, 379, 402, 414, 603, 758, 804, 828, 1137, 1206, 1516, 1541, 2274, 2412, 3082, 3411, 4548, 4623, 6164, 6822, 8717, 9246, 13644, 13869, 17434, 18492, 25393, 26151, 27738, 34868, 50786, 52302, 55476, 76179, 78453, 101572, 104604, 152358, 156906, 228537, 304716, 313812, 457074, 584039, 914148, 1168078, 1752117, 2336156, 3504234, 5256351, 7008468, 10512702, 21025404]

約数ペア:

[(1, 21025404), (2, 10512702), (3, 7008468), (4, 5256351), (6, 3504234), (9, 2336156), (12, 1752117), (18, 1168078), (23, 914148), (36, 584039), (46, 457074), (67, 313812), (69, 304716), (92, 228537), (134, 156906), (138, 152358), (201, 104604), (207, 101572), (268, 78453), (276, 76179), (379, 55476), (402, 52302), (414, 50786), (603, 34868), (758, 27738), (804, 26151), (828, 25393), (1137, 18492), (1206, 17434), (1516, 13869), (1541, 13644), (2274, 9246), (2412, 8717), (3082, 6822), (3411, 6164), (4548, 4623)]