19938866488

素因数分解:

$2^3\times {\mathrm{421}}^1\times {\mathrm{5920091}}^1$

素因数の和:5920518

約数の個数: 16

約数和(自身を含む): 37474182360

約数和(自身を除く): 17535315872

約数列:

[1, 2, 4, 8, 421, 842, 1684, 3368, 5920091, 11840182, 23680364, 47360728, 2492358311, 4984716622, 9969433244, 19938866488]

約数ペア:

[(1, 19938866488), (2, 9969433244), (4, 4984716622), (8, 2492358311), (421, 47360728), (842, 23680364), (1684, 11840182), (3368, 5920091)]