19780566

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{691}}^1$

素因数の和:1076

約数の個数: 32

約数和(自身を含む): 42782208

約数和(自身を除く): 23001642

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 367, 691, 734, 1101, 1382, 2073, 2202, 4146, 4771, 8983, 9542, 14313, 17966, 26949, 28626, 53898, 253597, 507194, 760791, 1521582, 3296761, 6593522, 9890283, 19780566]

約数ペア:

[(1, 19780566), (2, 9890283), (3, 6593522), (6, 3296761), (13, 1521582), (26, 760791), (39, 507194), (78, 253597), (367, 53898), (691, 28626), (734, 26949), (1101, 17966), (1382, 14313), (2073, 9542), (2202, 8983), (4146, 4771)]