21000466384

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{77207597}}^1$

素因数の和:77207622

約数の個数: 20

約数和(自身を含む): 43081839684

約数和(自身を除く): 22081373300

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 77207597, 154415194, 308830388, 617660776, 1235321552, 1312529149, 2625058298, 5250116596, 10500233192, 21000466384]

約数ペア:

[(1, 21000466384), (2, 10500233192), (4, 5250116596), (8, 2625058298), (16, 1312529149), (17, 1235321552), (34, 617660776), (68, 308830388), (136, 154415194), (272, 77207597)]