19757972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{929}}^1$

素因数の和:1355

約数の個数: 24

約数和(自身を含む): 37367400

約数和(自身を除く): 17609428

約数列:

[1, 2, 4, 13, 26, 52, 409, 818, 929, 1636, 1858, 3716, 5317, 10634, 12077, 21268, 24154, 48308, 379961, 759922, 1519844, 4939493, 9878986, 19757972]

約数ペア:

[(1, 19757972), (2, 9878986), (4, 4939493), (13, 1519844), (26, 759922), (52, 379961), (409, 48308), (818, 24154), (929, 21268), (1636, 12077), (1858, 10634), (3716, 5317)]