20587626

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:515

約数の個数: 48

約数和(自身を含む): 46441824

約数和(自身を除く): 25854198

約数列:

[1, 2, 3, 6, 9, 18, 43, 67, 86, 129, 134, 201, 258, 387, 397, 402, 603, 774, 794, 1191, 1206, 2382, 2881, 3573, 5762, 7146, 8643, 17071, 17286, 25929, 26599, 34142, 51213, 51858, 53198, 79797, 102426, 153639, 159594, 239391, 307278, 478782, 1143757, 2287514, 3431271, 6862542, 10293813, 20587626]

約数ペア:

[(1, 20587626), (2, 10293813), (3, 6862542), (6, 3431271), (9, 2287514), (18, 1143757), (43, 478782), (67, 307278), (86, 239391), (129, 159594), (134, 153639), (201, 102426), (258, 79797), (387, 53198), (397, 51858), (402, 51213), (603, 34142), (774, 26599), (794, 25929), (1191, 17286), (1206, 17071), (2382, 8643), (2881, 7146), (3573, 5762)]