20979912

素因数分解:

$2^3\times 3^1\times {\mathrm{131}}^1\times {\mathrm{6673}}^1$

素因数の和:6813

約数の個数: 32

約数和(自身を含む): 52858080

約数和(自身を除く): 31878168

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 131, 262, 393, 524, 786, 1048, 1572, 3144, 6673, 13346, 20019, 26692, 40038, 53384, 80076, 160152, 874163, 1748326, 2622489, 3496652, 5244978, 6993304, 10489956, 20979912]

約数ペア:

[(1, 20979912), (2, 10489956), (3, 6993304), (4, 5244978), (6, 3496652), (8, 2622489), (12, 1748326), (24, 874163), (131, 160152), (262, 80076), (393, 53384), (524, 40038), (786, 26692), (1048, 20019), (1572, 13346), (3144, 6673)]