81818199

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 132088320

約数和(自身を除く): 50270121

約数列:

[1, 3, 9, 19, 23, 57, 69, 71, 171, 207, 213, 293, 437, 639, 879, 1311, 1349, 1633, 2637, 3933, 4047, 4899, 5567, 6739, 12141, 14697, 16701, 20217, 20803, 31027, 50103, 60651, 62409, 93081, 128041, 187227, 279243, 384123, 395257, 478469, 1152369, 1185771, 1435407, 3557313, 4306221, 9090911, 27272733, 81818199]

約数ペア:

[(1, 81818199), (3, 27272733), (9, 9090911), (19, 4306221), (23, 3557313), (57, 1435407), (69, 1185771), (71, 1152369), (171, 478469), (207, 395257), (213, 384123), (293, 279243), (437, 187227), (639, 128041), (879, 93081), (1311, 62409), (1349, 60651), (1633, 50103), (2637, 31027), (3933, 20803), (4047, 20217), (4899, 16701), (5567, 14697), (6739, 12141)]