19881304

素因数分解:

$2^3\times {\mathrm{421}}^1\times {\mathrm{5903}}^1$

素因数の和:6330

約数の個数: 16

約数和(自身を含む): 37372320

約数和(自身を除く): 17491016

約数列:

[1, 2, 4, 8, 421, 842, 1684, 3368, 5903, 11806, 23612, 47224, 2485163, 4970326, 9940652, 19881304]

約数ペア:

[(1, 19881304), (2, 9940652), (4, 4970326), (8, 2485163), (421, 47224), (842, 23612), (1684, 11806), (3368, 5903)]