90997821

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1361}}^1$

素因数の和:1426

約数の個数: 48

約数和(自身を含む): 152979840

約数和(自身を除く): 61982019

約数列:

[1, 3, 9, 17, 19, 23, 51, 57, 69, 153, 171, 207, 323, 391, 437, 969, 1173, 1311, 1361, 2907, 3519, 3933, 4083, 7429, 12249, 22287, 23137, 25859, 31303, 66861, 69411, 77577, 93909, 208233, 232731, 281727, 439603, 532151, 594757, 1318809, 1596453, 1784271, 3956427, 4789359, 5352813, 10110869, 30332607, 90997821]

約数ペア:

[(1, 90997821), (3, 30332607), (9, 10110869), (17, 5352813), (19, 4789359), (23, 3956427), (51, 1784271), (57, 1596453), (69, 1318809), (153, 594757), (171, 532151), (207, 439603), (323, 281727), (391, 232731), (437, 208233), (969, 93909), (1173, 77577), (1311, 69411), (1361, 66861), (2907, 31303), (3519, 25859), (3933, 23137), (4083, 22287), (7429, 12249)]