19875128

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1187}}^1$

素因数の和:1236

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 28025032

約数列:

[1, 2, 4, 7, 8, 13, 14, 23, 26, 28, 46, 52, 56, 91, 92, 104, 161, 182, 184, 299, 322, 364, 598, 644, 728, 1187, 1196, 1288, 2093, 2374, 2392, 4186, 4748, 8309, 8372, 9496, 15431, 16618, 16744, 27301, 30862, 33236, 54602, 61724, 66472, 108017, 109204, 123448, 191107, 216034, 218408, 354913, 382214, 432068, 709826, 764428, 864136, 1419652, 1528856, 2484391, 2839304, 4968782, 9937564, 19875128]

約数ペア:

[(1, 19875128), (2, 9937564), (4, 4968782), (7, 2839304), (8, 2484391), (13, 1528856), (14, 1419652), (23, 864136), (26, 764428), (28, 709826), (46, 432068), (52, 382214), (56, 354913), (91, 218408), (92, 216034), (104, 191107), (161, 123448), (182, 109204), (184, 108017), (299, 66472), (322, 61724), (364, 54602), (598, 33236), (644, 30862), (728, 27301), (1187, 16744), (1196, 16618), (1288, 15431), (2093, 9496), (2374, 8372), (2392, 8309), (4186, 4748)]