20215742883

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{5443}}^1$

素因数の和:5624

約数の個数: 64

約数和(自身を含む): 32511393792

約数和(自身を除く): 12295650909

約数列:

[1, 3, 7, 21, 47, 53, 71, 141, 159, 213, 329, 371, 497, 987, 1113, 1491, 2491, 3337, 3763, 5443, 7473, 10011, 11289, 16329, 17437, 23359, 26341, 38101, 52311, 70077, 79023, 114303, 176861, 255821, 288479, 386453, 530583, 767463, 865437, 1159359, 1238027, 1790747, 2019353, 2705171, 3714081, 5372241, 6058059, 8115513, 13558513, 18163291, 20482009, 40675539, 54489873, 61446027, 94909591, 127143037, 143374063, 284728773, 381429111, 430122189, 962654423, 2887963269, 6738580961, 20215742883]

約数ペア:

[(1, 20215742883), (3, 6738580961), (7, 2887963269), (21, 962654423), (47, 430122189), (53, 381429111), (71, 284728773), (141, 143374063), (159, 127143037), (213, 94909591), (329, 61446027), (371, 54489873), (497, 40675539), (987, 20482009), (1113, 18163291), (1491, 13558513), (2491, 8115513), (3337, 6058059), (3763, 5372241), (5443, 3714081), (7473, 2705171), (10011, 2019353), (11289, 1790747), (16329, 1238027), (17437, 1159359), (23359, 865437), (26341, 767463), (38101, 530583), (52311, 386453), (70077, 288479), (79023, 255821), (114303, 176861)]