20857608

素因数分解:

$2^3\times 3^3\times {\mathrm{61}}^1\times {\mathrm{1583}}^1$

素因数の和:1659

約数の個数: 64

約数和(自身を含む): 58924800

約数和(自身を除く): 38067192

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 61, 72, 108, 122, 183, 216, 244, 366, 488, 549, 732, 1098, 1464, 1583, 1647, 2196, 3166, 3294, 4392, 4749, 6332, 6588, 9498, 12664, 13176, 14247, 18996, 28494, 37992, 42741, 56988, 85482, 96563, 113976, 170964, 193126, 289689, 341928, 386252, 579378, 772504, 869067, 1158756, 1738134, 2317512, 2607201, 3476268, 5214402, 6952536, 10428804, 20857608]

約数ペア:

[(1, 20857608), (2, 10428804), (3, 6952536), (4, 5214402), (6, 3476268), (8, 2607201), (9, 2317512), (12, 1738134), (18, 1158756), (24, 869067), (27, 772504), (36, 579378), (54, 386252), (61, 341928), (72, 289689), (108, 193126), (122, 170964), (183, 113976), (216, 96563), (244, 85482), (366, 56988), (488, 42741), (549, 37992), (732, 28494), (1098, 18996), (1464, 14247), (1583, 13176), (1647, 12664), (2196, 9498), (3166, 6588), (3294, 6332), (4392, 4749)]