331364313

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:667

約数の個数: 72

約数和(自身を含む): 595408320

約数和(自身を除く): 264044007

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 71, 133, 147, 171, 213, 399, 441, 497, 557, 639, 931, 1197, 1349, 1491, 1671, 2793, 3479, 3899, 4047, 4473, 5013, 8379, 9443, 10437, 10583, 11697, 12141, 27293, 28329, 31311, 31749, 35091, 39547, 66101, 74081, 81879, 84987, 95247, 118641, 198303, 222243, 245637, 276829, 355923, 518567, 594909, 666729, 751393, 830487, 1555701, 1937803, 2254179, 2491461, 4667103, 5259751, 5813409, 6762537, 15779253, 17440227, 36818257, 47337759, 110454771, 331364313]

約数ペア:

[(1, 331364313), (3, 110454771), (7, 47337759), (9, 36818257), (19, 17440227), (21, 15779253), (49, 6762537), (57, 5813409), (63, 5259751), (71, 4667103), (133, 2491461), (147, 2254179), (171, 1937803), (213, 1555701), (399, 830487), (441, 751393), (497, 666729), (557, 594909), (639, 518567), (931, 355923), (1197, 276829), (1349, 245637), (1491, 222243), (1671, 198303), (2793, 118641), (3479, 95247), (3899, 84987), (4047, 81879), (4473, 74081), (5013, 66101), (8379, 39547), (9443, 35091), (10437, 31749), (10583, 31311), (11697, 28329), (12141, 27293)]