28510461

素因数分解:

$3^6\times 7^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:213

約数の個数: 56

約数和(自身を含む): 50505344

約数和(自身を除く): 21994883

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 81, 111, 151, 189, 243, 259, 333, 453, 567, 729, 777, 999, 1057, 1359, 1701, 2331, 2997, 3171, 4077, 5103, 5587, 6993, 8991, 9513, 12231, 16761, 20979, 26973, 28539, 36693, 39109, 50283, 62937, 85617, 110079, 117327, 150849, 188811, 256851, 351981, 452547, 770553, 1055943, 1357641, 3167829, 4072923, 9503487, 28510461]

約数ペア:

[(1, 28510461), (3, 9503487), (7, 4072923), (9, 3167829), (21, 1357641), (27, 1055943), (37, 770553), (63, 452547), (81, 351981), (111, 256851), (151, 188811), (189, 150849), (243, 117327), (259, 110079), (333, 85617), (453, 62937), (567, 50283), (729, 39109), (777, 36693), (999, 28539), (1057, 26973), (1359, 20979), (1701, 16761), (2331, 12231), (2997, 9513), (3171, 8991), (4077, 6993), (5103, 5587)]