21561876

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{3169}}^1$

素因数の和:3195

約数の個数: 72

約数和(自身を含む): 64617280

約数和(自身を除く): 43055404

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 243, 252, 324, 378, 486, 567, 756, 972, 1134, 1701, 2268, 3169, 3402, 6338, 6804, 9507, 12676, 19014, 22183, 28521, 38028, 44366, 57042, 66549, 85563, 88732, 114084, 133098, 171126, 199647, 256689, 266196, 342252, 399294, 513378, 598941, 770067, 798588, 1026756, 1197882, 1540134, 1796823, 2395764, 3080268, 3593646, 5390469, 7187292, 10780938, 21561876]

約数ペア:

[(1, 21561876), (2, 10780938), (3, 7187292), (4, 5390469), (6, 3593646), (7, 3080268), (9, 2395764), (12, 1796823), (14, 1540134), (18, 1197882), (21, 1026756), (27, 798588), (28, 770067), (36, 598941), (42, 513378), (54, 399294), (63, 342252), (81, 266196), (84, 256689), (108, 199647), (126, 171126), (162, 133098), (189, 114084), (243, 88732), (252, 85563), (324, 66549), (378, 57042), (486, 44366), (567, 38028), (756, 28521), (972, 22183), (1134, 19014), (1701, 12676), (2268, 9507), (3169, 6804), (3402, 6338)]