21643472

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{17123}}^1$

素因数の和:17210

約数の個数: 20

約数和(自身を含む): 42467520

約数和(自身を除く): 20824048

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 17123, 34246, 68492, 136984, 273968, 1352717, 2705434, 5410868, 10821736, 21643472]

約数ペア:

[(1, 21643472), (2, 10821736), (4, 5410868), (8, 2705434), (16, 1352717), (79, 273968), (158, 136984), (316, 68492), (632, 34246), (1264, 17123)]