31284981

素因数分解:

$3^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:160

約数の個数: 96

約数和(自身を含む): 62052480

約数和(自身を除く): 30767499

約数列:

[1, 3, 7, 9, 13, 17, 21, 27, 39, 49, 51, 63, 91, 107, 117, 119, 147, 153, 189, 221, 273, 321, 351, 357, 441, 459, 637, 663, 749, 819, 833, 963, 1071, 1323, 1391, 1547, 1819, 1911, 1989, 2247, 2457, 2499, 2889, 3213, 4173, 4641, 5243, 5457, 5733, 5967, 6741, 7497, 9737, 10829, 12519, 12733, 13923, 15729, 16371, 17199, 20223, 22491, 23647, 29211, 32487, 37557, 38199, 41769, 47187, 49113, 68159, 70941, 87633, 89131, 97461, 114597, 141561, 165529, 204477, 212823, 262899, 267393, 292383, 343791, 496587, 613431, 638469, 802179, 1158703, 1489761, 1840293, 2406537, 3476109, 4469283, 10428327, 31284981]

約数ペア:

[(1, 31284981), (3, 10428327), (7, 4469283), (9, 3476109), (13, 2406537), (17, 1840293), (21, 1489761), (27, 1158703), (39, 802179), (49, 638469), (51, 613431), (63, 496587), (91, 343791), (107, 292383), (117, 267393), (119, 262899), (147, 212823), (153, 204477), (189, 165529), (221, 141561), (273, 114597), (321, 97461), (351, 89131), (357, 87633), (441, 70941), (459, 68159), (637, 49113), (663, 47187), (749, 41769), (819, 38199), (833, 37557), (963, 32487), (1071, 29211), (1323, 23647), (1391, 22491), (1547, 20223), (1819, 17199), (1911, 16371), (1989, 15729), (2247, 13923), (2457, 12733), (2499, 12519), (2889, 10829), (3213, 9737), (4173, 7497), (4641, 6741), (5243, 5967), (5457, 5733)]