131231898

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:273

約数の個数: 144

約数和(自身を含む): 358525440

約数和(自身を除く): 227293542

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 41, 42, 49, 57, 63, 82, 98, 114, 123, 126, 133, 147, 171, 191, 246, 266, 287, 294, 342, 369, 382, 399, 441, 573, 574, 738, 779, 798, 861, 882, 931, 1146, 1197, 1337, 1558, 1719, 1722, 1862, 2009, 2337, 2394, 2583, 2674, 2793, 3438, 3629, 4011, 4018, 4674, 5166, 5453, 5586, 6027, 7011, 7258, 7831, 8022, 8379, 9359, 10887, 10906, 12033, 12054, 14022, 15662, 16359, 16758, 18081, 18718, 21774, 23493, 24066, 25403, 28077, 32661, 32718, 36162, 38171, 46986, 49077, 50806, 54817, 56154, 65322, 70479, 76209, 76342, 84231, 98154, 109634, 114513, 140958, 148789, 152418, 164451, 168462, 177821, 228627, 229026, 297578, 328902, 343539, 355642, 383719, 446367, 457254, 493353, 533463, 687078, 767438, 892734, 986706, 1041523, 1066926, 1151157, 1339101, 1600389, 2083046, 2302314, 2678202, 3124569, 3200778, 3453471, 6249138, 6906942, 7290661, 9373707, 14581322, 18747414, 21871983, 43743966, 65615949, 131231898]

約数ペア:

[(1, 131231898), (2, 65615949), (3, 43743966), (6, 21871983), (7, 18747414), (9, 14581322), (14, 9373707), (18, 7290661), (19, 6906942), (21, 6249138), (38, 3453471), (41, 3200778), (42, 3124569), (49, 2678202), (57, 2302314), (63, 2083046), (82, 1600389), (98, 1339101), (114, 1151157), (123, 1066926), (126, 1041523), (133, 986706), (147, 892734), (171, 767438), (191, 687078), (246, 533463), (266, 493353), (287, 457254), (294, 446367), (342, 383719), (369, 355642), (382, 343539), (399, 328902), (441, 297578), (573, 229026), (574, 228627), (738, 177821), (779, 168462), (798, 164451), (861, 152418), (882, 148789), (931, 140958), (1146, 114513), (1197, 109634), (1337, 98154), (1558, 84231), (1719, 76342), (1722, 76209), (1862, 70479), (2009, 65322), (2337, 56154), (2394, 54817), (2583, 50806), (2674, 49077), (2793, 46986), (3438, 38171), (3629, 36162), (4011, 32718), (4018, 32661), (4674, 28077), (5166, 25403), (5453, 24066), (5586, 23493), (6027, 21774), (7011, 18718), (7258, 18081), (7831, 16758), (8022, 16359), (8379, 15662), (9359, 14022), (10887, 12054), (10906, 12033)]