21246208

素因数分解:

$2^8\times {\mathrm{149}}^1\times {\mathrm{557}}^1$

素因数の和:722

約数の個数: 36

約数和(自身を含む): 42770700

約数和(自身を除く): 21524492

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 149, 256, 298, 557, 596, 1114, 1192, 2228, 2384, 4456, 4768, 8912, 9536, 17824, 19072, 35648, 38144, 71296, 82993, 142592, 165986, 331972, 663944, 1327888, 2655776, 5311552, 10623104, 21246208]

約数ペア:

[(1, 21246208), (2, 10623104), (4, 5311552), (8, 2655776), (16, 1327888), (32, 663944), (64, 331972), (128, 165986), (149, 142592), (256, 82993), (298, 71296), (557, 38144), (596, 35648), (1114, 19072), (1192, 17824), (2228, 9536), (2384, 8912), (4456, 4768)]