20917005

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3191}}^1$

素因数の和:3241

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 15854835

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 285, 345, 437, 1311, 2185, 3191, 6555, 9573, 15955, 47865, 60629, 73393, 181887, 220179, 303145, 366965, 909435, 1100895, 1394467, 4183401, 6972335, 20917005]

約数ペア:

[(1, 20917005), (3, 6972335), (5, 4183401), (15, 1394467), (19, 1100895), (23, 909435), (57, 366965), (69, 303145), (95, 220179), (115, 181887), (285, 73393), (345, 60629), (437, 47865), (1311, 15955), (2185, 9573), (3191, 6555)]