21177309

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{3733}}^1$

素因数の和:3828

約数の個数: 16

約数和(自身を含む): 29633024

約数和(自身を除く): 8455715

約数列:

[1, 3, 31, 61, 93, 183, 1891, 3733, 5673, 11199, 115723, 227713, 347169, 683139, 7059103, 21177309]

約数ペア:

[(1, 21177309), (3, 7059103), (31, 683139), (61, 347169), (93, 227713), (183, 115723), (1891, 11199), (3733, 5673)]