20917712

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{17909}}^1$

素因数の和:17990

約数の個数: 20

約数和(自身を含む): 41085540

約数和(自身を除く): 20167828

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 17909, 35818, 71636, 143272, 286544, 1307357, 2614714, 5229428, 10458856, 20917712]

約数ペア:

[(1, 20917712), (2, 10458856), (4, 5229428), (8, 2614714), (16, 1307357), (73, 286544), (146, 143272), (292, 71636), (584, 35818), (1168, 17909)]