21887891

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1013}}^1$

素因数の和:1102

約数の個数: 16

約数和(自身を含む): 24530688

約数和(自身を除く): 2642797

約数列:

[1, 17, 31, 41, 527, 697, 1013, 1271, 17221, 21607, 31403, 41533, 533851, 706061, 1287523, 21887891]

約数ペア:

[(1, 21887891), (17, 1287523), (31, 706061), (41, 533851), (527, 41533), (697, 31403), (1013, 21607), (1271, 17221)]