21491609906

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{150373}}^1$

素因数の和:150650

約数の個数: 32

約数和(自身を含む): 36378478080

約数和(自身を除く): 14886868174

約数列:

[1, 2, 13, 23, 26, 46, 239, 299, 478, 598, 3107, 5497, 6214, 10994, 71461, 142922, 150373, 300746, 1954849, 3458579, 3909698, 6917158, 35939147, 44961527, 71878294, 89923054, 467208911, 826600381, 934417822, 1653200762, 10745804953, 21491609906]

約数ペア:

[(1, 21491609906), (2, 10745804953), (13, 1653200762), (23, 934417822), (26, 826600381), (46, 467208911), (239, 89923054), (299, 71878294), (478, 44961527), (598, 35939147), (3107, 6917158), (5497, 3909698), (6214, 3458579), (10994, 1954849), (71461, 300746), (142922, 150373)]