21634028

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{32003}}^1$

素因数の和:32033

約数の個数: 18

約数和(自身を含む): 40997124

約数和(自身を除く): 19363096

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 32003, 64006, 128012, 416039, 832078, 1664156, 5408507, 10817014, 21634028]

約数ペア:

[(1, 21634028), (2, 10817014), (4, 5408507), (13, 1664156), (26, 832078), (52, 416039), (169, 128012), (338, 64006), (676, 32003)]