21099871

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1277}}^1$

素因数の和:1362

約数の個数: 16

約数和(自身を含む): 24046848

約数和(自身を除く): 2946977

約数列:

[1, 13, 31, 41, 403, 533, 1271, 1277, 16523, 16601, 39587, 52357, 514631, 680641, 1623067, 21099871]

約数ペア:

[(1, 21099871), (13, 1623067), (31, 680641), (41, 514631), (403, 52357), (533, 39587), (1271, 16601), (1277, 16523)]