20403318

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{261581}}^1$

素因数の和:261599

約数の個数: 16

約数和(自身を含む): 43945776

約数和(自身を除く): 23542458

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 261581, 523162, 784743, 1569486, 3400553, 6801106, 10201659, 20403318]

約数ペア:

[(1, 20403318), (2, 10201659), (3, 6801106), (6, 3400553), (13, 1569486), (26, 784743), (39, 523162), (78, 261581)]