28489461

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 23765259

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 53, 77, 91, 143, 159, 179, 231, 273, 371, 429, 537, 583, 689, 1001, 1113, 1253, 1749, 1969, 2067, 2327, 3003, 3759, 4081, 4823, 5907, 6981, 7579, 9487, 12243, 13783, 14469, 16289, 22737, 25597, 28461, 41349, 48867, 53053, 66409, 76791, 104357, 123331, 159159, 179179, 199227, 313071, 369993, 537537, 730499, 863317, 1356641, 2191497, 2589951, 4069923, 9496487, 28489461]

約数ペア:

[(1, 28489461), (3, 9496487), (7, 4069923), (11, 2589951), (13, 2191497), (21, 1356641), (33, 863317), (39, 730499), (53, 537537), (77, 369993), (91, 313071), (143, 199227), (159, 179179), (179, 159159), (231, 123331), (273, 104357), (371, 76791), (429, 66409), (537, 53053), (583, 48867), (689, 41349), (1001, 28461), (1113, 25597), (1253, 22737), (1749, 16289), (1969, 14469), (2067, 13783), (2327, 12243), (3003, 9487), (3759, 7579), (4081, 6981), (4823, 5907)]