20476365

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2143}}^1$

素因数の和:2178

約数の個数: 48

約数和(自身を含む): 41061888

約数和(自身を除く): 20585523

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 195, 245, 273, 455, 637, 735, 1365, 1911, 2143, 3185, 6429, 9555, 10715, 15001, 27859, 32145, 45003, 75005, 83577, 105007, 139295, 195013, 225015, 315021, 417885, 525035, 585039, 975065, 1365091, 1575105, 2925195, 4095273, 6825455, 20476365]

約数ペア:

[(1, 20476365), (3, 6825455), (5, 4095273), (7, 2925195), (13, 1575105), (15, 1365091), (21, 975065), (35, 585039), (39, 525035), (49, 417885), (65, 315021), (91, 225015), (105, 195013), (147, 139295), (195, 105007), (245, 83577), (273, 75005), (455, 45003), (637, 32145), (735, 27859), (1365, 15001), (1911, 10715), (2143, 9555), (3185, 6429)]