19378466

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:266

約数の個数: 32

約数和(自身を含む): 31667328

約数和(自身を除く): 12288862

約数列:

[1, 2, 23, 43, 46, 86, 97, 101, 194, 202, 989, 1978, 2231, 2323, 4171, 4343, 4462, 4646, 8342, 8686, 9797, 19594, 95933, 99889, 191866, 199778, 225331, 421271, 450662, 842542, 9689233, 19378466]

約数ペア:

[(1, 19378466), (2, 9689233), (23, 842542), (43, 450662), (46, 421271), (86, 225331), (97, 199778), (101, 191866), (194, 99889), (202, 95933), (989, 19594), (1978, 9797), (2231, 8686), (2323, 8342), (4171, 4646), (4343, 4462)]