21491409912

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{127925059}}^1$

素因数の和:127925075

約数の個数: 32

約数和(自身を含む): 61404028800

約数和(自身を除く): 39912618888

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 127925059, 255850118, 383775177, 511700236, 767550354, 895475413, 1023400472, 1535100708, 1790950826, 2686426239, 3070201416, 3581901652, 5372852478, 7163803304, 10745704956, 21491409912]

約数ペア:

[(1, 21491409912), (2, 10745704956), (3, 7163803304), (4, 5372852478), (6, 3581901652), (7, 3070201416), (8, 2686426239), (12, 1790950826), (14, 1535100708), (21, 1023400472), (24, 895475413), (28, 767550354), (42, 511700236), (56, 383775177), (84, 255850118), (168, 127925059)]