21269986

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{677}}^1\times {\mathrm{683}}^1$

素因数の和:1385

約数の個数: 16

約数和(自身を含む): 33390144

約数和(自身を除く): 12120158

約数列:

[1, 2, 23, 46, 677, 683, 1354, 1366, 15571, 15709, 31142, 31418, 462391, 924782, 10634993, 21269986]

約数ペア:

[(1, 21269986), (2, 10634993), (23, 924782), (46, 462391), (677, 31418), (683, 31142), (1354, 15709), (1366, 15571)]