20543607

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 35756032

約数和(自身を除く): 15212425

約数列:

[1, 3, 7, 9, 21, 31, 63, 67, 93, 157, 201, 217, 279, 469, 471, 603, 651, 1099, 1407, 1413, 1953, 2077, 3297, 4221, 4867, 6231, 9891, 10519, 14539, 14601, 18693, 31557, 34069, 43617, 43803, 73633, 94671, 102207, 130851, 220899, 306621, 326089, 662697, 978267, 2282623, 2934801, 6847869, 20543607]

約数ペア:

[(1, 20543607), (3, 6847869), (7, 2934801), (9, 2282623), (21, 978267), (31, 662697), (63, 326089), (67, 306621), (93, 220899), (157, 130851), (201, 102207), (217, 94671), (279, 73633), (469, 43803), (471, 43617), (603, 34069), (651, 31557), (1099, 18693), (1407, 14601), (1413, 14539), (1953, 10519), (2077, 9891), (3297, 6231), (4221, 4867)]