21801468

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139753}}^1$

素因数の和:139773

約数の個数: 24

約数和(自身を含む): 54783568

約数和(自身を除く): 32982100

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 139753, 279506, 419259, 559012, 838518, 1677036, 1816789, 3633578, 5450367, 7267156, 10900734, 21801468]

約数ペア:

[(1, 21801468), (2, 10900734), (3, 7267156), (4, 5450367), (6, 3633578), (12, 1816789), (13, 1677036), (26, 838518), (39, 559012), (52, 419259), (78, 279506), (156, 139753)]