19807634

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{128621}}^1$

素因数の和:128641

約数の個数: 16

約数和(自身を含む): 37043136

約数和(自身を除く): 17235502

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 128621, 257242, 900347, 1414831, 1800694, 2829662, 9903817, 19807634]

約数ペア:

[(1, 19807634), (2, 9903817), (7, 2829662), (11, 1800694), (14, 1414831), (22, 900347), (77, 257242), (154, 128621)]