20420764

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{56101}}^1$

素因数の和:56125

約数の個数: 24

約数和(自身を含む): 43983968

約数和(自身を除く): 23563204

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 56101, 112202, 224404, 392707, 729313, 785414, 1458626, 1570828, 2917252, 5105191, 10210382, 20420764]

約数ペア:

[(1, 20420764), (2, 10210382), (4, 5105191), (7, 2917252), (13, 1570828), (14, 1458626), (26, 785414), (28, 729313), (52, 392707), (91, 224404), (182, 112202), (364, 56101)]