1257333987

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1087}}^1$

素因数の和:1352

約数の個数: 64

約数和(自身を含む): 2183659520

約数和(自身を除く): 926325533

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 223, 247, 273, 399, 669, 741, 1087, 1561, 1729, 2899, 3261, 4237, 4683, 5187, 7609, 8697, 12711, 14131, 20293, 20653, 22827, 29659, 42393, 55081, 60879, 61959, 88977, 98917, 144571, 165243, 242401, 268489, 296751, 385567, 433713, 727203, 805467, 1156701, 1696807, 1879423, 3151213, 4605619, 5090421, 5638269, 9453639, 13816857, 22058491, 32239333, 59873047, 66175473, 96717999, 179619141, 419111329, 1257333987]

約数ペア:

[(1, 1257333987), (3, 419111329), (7, 179619141), (13, 96717999), (19, 66175473), (21, 59873047), (39, 32239333), (57, 22058491), (91, 13816857), (133, 9453639), (223, 5638269), (247, 5090421), (273, 4605619), (399, 3151213), (669, 1879423), (741, 1696807), (1087, 1156701), (1561, 805467), (1729, 727203), (2899, 433713), (3261, 385567), (4237, 296751), (4683, 268489), (5187, 242401), (7609, 165243), (8697, 144571), (12711, 98917), (14131, 88977), (20293, 61959), (20653, 60879), (22827, 55081), (29659, 42393)]