21863649

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{13829}}^1$

素因数の和:13880

約数の個数: 16

約数和(自身を含む): 31864320

約数和(自身を除く): 10000671

約数列:

[1, 3, 17, 31, 51, 93, 527, 1581, 13829, 41487, 235093, 428699, 705279, 1286097, 7287883, 21863649]

約数ペア:

[(1, 21863649), (3, 7287883), (17, 1286097), (31, 705279), (51, 428699), (93, 235093), (527, 41487), (1581, 13829)]