28372617

素因数分解:

$3^2\times 7^4\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:148

約数の個数: 60

約数和(自身を含む): 51997764

約数和(自身を除く): 23625147

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 101, 117, 147, 273, 303, 343, 441, 637, 707, 819, 909, 1029, 1313, 1911, 2121, 2401, 3087, 3939, 4459, 4949, 5733, 6363, 7203, 9191, 11817, 13377, 14847, 21609, 27573, 31213, 34643, 40131, 44541, 64337, 82719, 93639, 103929, 193011, 242501, 280917, 311787, 450359, 579033, 727503, 1351077, 2182509, 3152513, 4053231, 9457539, 28372617]

約数ペア:

[(1, 28372617), (3, 9457539), (7, 4053231), (9, 3152513), (13, 2182509), (21, 1351077), (39, 727503), (49, 579033), (63, 450359), (91, 311787), (101, 280917), (117, 242501), (147, 193011), (273, 103929), (303, 93639), (343, 82719), (441, 64337), (637, 44541), (707, 40131), (819, 34643), (909, 31213), (1029, 27573), (1313, 21609), (1911, 14847), (2121, 13377), (2401, 11817), (3087, 9191), (3939, 7203), (4459, 6363), (4949, 5733)]