19742828

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{9931}}^1$

素因数の和:10013

約数の個数: 24

約数和(自身を含む): 40045824

約数和(自身を除く): 20302996

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 9931, 19862, 39724, 69517, 139034, 278068, 705101, 1410202, 2820404, 4935707, 9871414, 19742828]

約数ペア:

[(1, 19742828), (2, 9871414), (4, 4935707), (7, 2820404), (14, 1410202), (28, 705101), (71, 278068), (142, 139034), (284, 69517), (497, 39724), (994, 19862), (1988, 9931)]