287745129

素因数分解:

$3^4\times 7^1\times {\mathrm{191}}^1\times {\mathrm{2657}}^1$

素因数の和:2867

約数の個数: 40

約数和(自身を含む): 494005248

約数和(自身を除く): 206260119

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 191, 567, 573, 1337, 1719, 2657, 4011, 5157, 7971, 12033, 15471, 18599, 23913, 36099, 55797, 71739, 108297, 167391, 215217, 502173, 507487, 1506519, 1522461, 3552409, 4567383, 10657227, 13702149, 31971681, 41106447, 95915043, 287745129]

約数ペア:

[(1, 287745129), (3, 95915043), (7, 41106447), (9, 31971681), (21, 13702149), (27, 10657227), (63, 4567383), (81, 3552409), (189, 1522461), (191, 1506519), (567, 507487), (573, 502173), (1337, 215217), (1719, 167391), (2657, 108297), (4011, 71739), (5157, 55797), (7971, 36099), (12033, 23913), (15471, 18599)]