217535402

素因数分解:

$2^1\times 7^4\times {\mathrm{89}}^1\times {\mathrm{509}}^1$

素因数の和:628

約数の個数: 40

約数和(自身を含む): 385697700

約数和(自身を除く): 168162298

約数列:

[1, 2, 7, 14, 49, 89, 98, 178, 343, 509, 623, 686, 1018, 1246, 2401, 3563, 4361, 4802, 7126, 8722, 24941, 30527, 45301, 49882, 61054, 90602, 174587, 213689, 317107, 349174, 427378, 634214, 1222109, 2219749, 2444218, 4439498, 15538243, 31076486, 108767701, 217535402]

約数ペア:

[(1, 217535402), (2, 108767701), (7, 31076486), (14, 15538243), (49, 4439498), (89, 2444218), (98, 2219749), (178, 1222109), (343, 634214), (509, 427378), (623, 349174), (686, 317107), (1018, 213689), (1246, 174587), (2401, 90602), (3563, 61054), (4361, 49882), (4802, 45301), (7126, 30527), (8722, 24941)]