28551231

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 43776000

約数和(自身を除く): 15224769

約数列:

[1, 3, 9, 27, 47, 141, 149, 151, 423, 447, 453, 1269, 1341, 1359, 4023, 4077, 7003, 7097, 21009, 21291, 22499, 63027, 63873, 67497, 189081, 191619, 202491, 607473, 1057453, 3172359, 9517077, 28551231]

約数ペア:

[(1, 28551231), (3, 9517077), (9, 3172359), (27, 1057453), (47, 607473), (141, 202491), (149, 191619), (151, 189081), (423, 67497), (447, 63873), (453, 63027), (1269, 22499), (1341, 21291), (1359, 21009), (4023, 7097), (4077, 7003)]