20173763589

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{81157}}^1$

素因数の和:81282

約数の個数: 48

約数和(自身を含む): 33307243200

約数和(自身を除く): 13133479611

約数列:

[1, 3, 7, 19, 21, 49, 57, 89, 133, 147, 267, 399, 623, 931, 1691, 1869, 2793, 4361, 5073, 11837, 13083, 35511, 81157, 82859, 243471, 248577, 568099, 1541983, 1704297, 3976693, 4625949, 7222973, 10793881, 11930079, 21668919, 32381643, 50560811, 75557167, 137236487, 151682433, 226671501, 353925677, 411709461, 960655409, 1061777031, 2881966227, 6724587863, 20173763589]

約数ペア:

[(1, 20173763589), (3, 6724587863), (7, 2881966227), (19, 1061777031), (21, 960655409), (49, 411709461), (57, 353925677), (89, 226671501), (133, 151682433), (147, 137236487), (267, 75557167), (399, 50560811), (623, 32381643), (931, 21668919), (1691, 11930079), (1869, 10793881), (2793, 7222973), (4361, 4625949), (5073, 3976693), (11837, 1704297), (13083, 1541983), (35511, 568099), (81157, 248577), (82859, 243471)]