21396336784

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{22665611}}^1$

素因数の和:22665678

約数の個数: 20

約数和(自身を含む): 42158038320

約数和(自身を除く): 20761701536

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 22665611, 45331222, 90662444, 181324888, 362649776, 1337271049, 2674542098, 5349084196, 10698168392, 21396336784]

約数ペア:

[(1, 21396336784), (2, 10698168392), (4, 5349084196), (8, 2674542098), (16, 1337271049), (59, 362649776), (118, 181324888), (236, 90662444), (472, 45331222), (944, 22665611)]