19828886

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{389}}^1$

素因数の和:740

約数の個数: 32

約数和(自身を含む): 37290240

約数和(自身を除く): 17461354

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 331, 389, 662, 778, 2317, 2723, 3641, 4279, 4634, 5446, 7282, 8558, 25487, 29953, 50974, 59906, 128759, 257518, 901313, 1416349, 1802626, 2832698, 9914443, 19828886]

約数ペア:

[(1, 19828886), (2, 9914443), (7, 2832698), (11, 1802626), (14, 1416349), (22, 901313), (77, 257518), (154, 128759), (331, 59906), (389, 50974), (662, 29953), (778, 25487), (2317, 8558), (2723, 7282), (3641, 5446), (4279, 4634)]