28990731

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{3061}}^1$

素因数の和:3123

約数の個数: 32

約数和(自身を含む): 49383936

約数和(自身を除く): 20393205

約数列:

[1, 3, 7, 11, 21, 33, 41, 77, 123, 231, 287, 451, 861, 1353, 3061, 3157, 9183, 9471, 21427, 33671, 64281, 101013, 125501, 235697, 376503, 707091, 878507, 1380511, 2635521, 4141533, 9663577, 28990731]

約数ペア:

[(1, 28990731), (3, 9663577), (7, 4141533), (11, 2635521), (21, 1380511), (33, 878507), (41, 707091), (77, 376503), (123, 235697), (231, 125501), (287, 101013), (451, 64281), (861, 33671), (1353, 21427), (3061, 9471), (3157, 9183)]