21284224

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{12791}}^1$

素因数の和:12818

約数の個数: 32

約数和(自身を含む): 45667440

約数和(自身を除く): 24383216

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 12791, 25582, 51164, 102328, 166283, 204656, 332566, 409312, 665132, 818624, 1330264, 1637248, 2660528, 5321056, 10642112, 21284224]

約数ペア:

[(1, 21284224), (2, 10642112), (4, 5321056), (8, 2660528), (13, 1637248), (16, 1330264), (26, 818624), (32, 665132), (52, 409312), (64, 332566), (104, 204656), (128, 166283), (208, 102328), (416, 51164), (832, 25582), (1664, 12791)]