28304199

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 53114880

約数和(自身を除く): 24810681

約数列:

[1, 3, 7, 9, 11, 21, 33, 47, 63, 77, 79, 99, 121, 141, 231, 237, 329, 363, 423, 517, 553, 693, 711, 847, 869, 987, 1089, 1551, 1659, 2541, 2607, 2961, 3619, 3713, 4653, 4977, 5687, 6083, 7623, 7821, 9559, 10857, 11139, 17061, 18249, 25991, 28677, 32571, 33417, 39809, 40843, 51183, 54747, 66913, 77973, 86031, 119427, 122529, 200739, 233919, 285901, 358281, 367587, 449273, 602217, 857703, 1347819, 2573109, 3144911, 4043457, 9434733, 28304199]

約数ペア:

[(1, 28304199), (3, 9434733), (7, 4043457), (9, 3144911), (11, 2573109), (21, 1347819), (33, 857703), (47, 602217), (63, 449273), (77, 367587), (79, 358281), (99, 285901), (121, 233919), (141, 200739), (231, 122529), (237, 119427), (329, 86031), (363, 77973), (423, 66913), (517, 54747), (553, 51183), (693, 40843), (711, 39809), (847, 33417), (869, 32571), (987, 28677), (1089, 25991), (1551, 18249), (1659, 17061), (2541, 11139), (2607, 10857), (2961, 9559), (3619, 7821), (3713, 7623), (4653, 6083), (4977, 5687)]