21371883

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{2393}}^1$

素因数の和:2638

約数の個数: 16

約数和(自身を含む): 30834720

約数和(自身を除く): 9462837

約数列:

[1, 3, 13, 39, 229, 687, 2393, 2977, 7179, 8931, 31109, 93327, 547997, 1643991, 7123961, 21371883]

約数ペア:

[(1, 21371883), (3, 7123961), (13, 1643991), (39, 547997), (229, 93327), (687, 31109), (2393, 8931), (2977, 7179)]