21963253

素因数分解:

${\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:444

約数の個数: 16

約数和(自身を含む): 24385536

約数和(自身を除く): 2422283

約数列:

[1, 13, 53, 127, 251, 689, 1651, 3263, 6731, 13303, 31877, 87503, 172939, 414401, 1689481, 21963253]

約数ペア:

[(1, 21963253), (13, 1689481), (53, 414401), (127, 172939), (251, 87503), (689, 31877), (1651, 13303), (3263, 6731)]