28288017

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 46949760

約数和(自身を除く): 18661743

約数列:

[1, 3, 9, 17, 19, 37, 51, 57, 111, 153, 171, 263, 323, 333, 629, 703, 789, 969, 1887, 2109, 2367, 2907, 4471, 4997, 5661, 6327, 9731, 11951, 13413, 14991, 29193, 35853, 40239, 44973, 84949, 87579, 107559, 165427, 184889, 254847, 496281, 554667, 764541, 1488843, 1664001, 3143113, 9429339, 28288017]

約数ペア:

[(1, 28288017), (3, 9429339), (9, 3143113), (17, 1664001), (19, 1488843), (37, 764541), (51, 554667), (57, 496281), (111, 254847), (153, 184889), (171, 165427), (263, 107559), (323, 87579), (333, 84949), (629, 44973), (703, 40239), (789, 35853), (969, 29193), (1887, 14991), (2109, 13413), (2367, 11951), (2907, 9731), (4471, 6327), (4997, 5661)]