20398872

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{65381}}^1$

素因数の和:65403

約数の個数: 32

約数和(自身を含む): 54920880

約数和(自身を除く): 34522008

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 65381, 130762, 196143, 261524, 392286, 523048, 784572, 849953, 1569144, 1699906, 2549859, 3399812, 5099718, 6799624, 10199436, 20398872]

約数ペア:

[(1, 20398872), (2, 10199436), (3, 6799624), (4, 5099718), (6, 3399812), (8, 2549859), (12, 1699906), (13, 1569144), (24, 849953), (26, 784572), (39, 523048), (52, 392286), (78, 261524), (104, 196143), (156, 130762), (312, 65381)]