163561815

素因数分解:

$3^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{7717}}^1$

素因数の和:7888

約数の個数: 32

約数和(自身を含む): 292666560

約数和(自身を除く): 129104745

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157, 471, 785, 1413, 2355, 4239, 7065, 7717, 21195, 23151, 38585, 69453, 115755, 208359, 347265, 1041795, 1211569, 3634707, 6057845, 10904121, 18173535, 32712363, 54520605, 163561815]

約数ペア:

[(1, 163561815), (3, 54520605), (5, 32712363), (9, 18173535), (15, 10904121), (27, 6057845), (45, 3634707), (135, 1211569), (157, 1041795), (471, 347265), (785, 208359), (1413, 115755), (2355, 69453), (4239, 38585), (7065, 23151), (7717, 21195)]