20653941

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 35754048

約数和(自身を除く): 15100107

約数列:

[1, 3, 7, 11, 21, 33, 49, 53, 77, 147, 159, 231, 241, 371, 539, 583, 723, 1113, 1617, 1687, 1749, 2597, 2651, 4081, 5061, 7791, 7953, 11809, 12243, 12773, 18557, 28567, 35427, 38319, 55671, 85701, 89411, 129899, 140503, 268233, 389697, 421509, 625877, 983521, 1877631, 2950563, 6884647, 20653941]

約数ペア:

[(1, 20653941), (3, 6884647), (7, 2950563), (11, 1877631), (21, 983521), (33, 625877), (49, 421509), (53, 389697), (77, 268233), (147, 140503), (159, 129899), (231, 89411), (241, 85701), (371, 55671), (539, 38319), (583, 35427), (723, 28567), (1113, 18557), (1617, 12773), (1687, 12243), (1749, 11809), (2597, 7953), (2651, 7791), (4081, 5061)]