21899578

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1\times {\mathrm{839}}^1$

素因数の和:1293

約数の個数: 16

約数和(自身を含む): 34030080

約数和(自身を除く): 12130502

約数列:

[1, 2, 31, 62, 421, 839, 842, 1678, 13051, 26009, 26102, 52018, 353219, 706438, 10949789, 21899578]

約数ペア:

[(1, 21899578), (2, 10949789), (31, 706438), (62, 353219), (421, 52018), (839, 26102), (842, 26009), (1678, 13051)]