18910485

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:207

約数の個数: 72

約数和(自身を含む): 37844352

約数和(自身を除く): 18933867

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 99, 115, 121, 151, 165, 207, 253, 345, 363, 453, 495, 605, 755, 759, 1035, 1089, 1265, 1359, 1661, 1815, 2265, 2277, 2783, 3473, 3795, 4983, 5445, 6795, 8305, 8349, 10419, 11385, 13915, 14949, 17365, 18271, 24915, 25047, 31257, 38203, 41745, 52095, 54813, 74745, 91355, 114609, 125235, 156285, 164439, 191015, 274065, 343827, 420233, 573045, 822195, 1260699, 1719135, 2101165, 3782097, 6303495, 18910485]

約数ペア:

[(1, 18910485), (3, 6303495), (5, 3782097), (9, 2101165), (11, 1719135), (15, 1260699), (23, 822195), (33, 573045), (45, 420233), (55, 343827), (69, 274065), (99, 191015), (115, 164439), (121, 156285), (151, 125235), (165, 114609), (207, 91355), (253, 74745), (345, 54813), (363, 52095), (453, 41745), (495, 38203), (605, 31257), (755, 25047), (759, 24915), (1035, 18271), (1089, 17365), (1265, 14949), (1359, 13915), (1661, 11385), (1815, 10419), (2265, 8349), (2277, 8305), (2783, 6795), (3473, 5445), (3795, 4983)]