18689388

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{81971}}^1$

素因数の和:81997

約数の個数: 24

約数和(自身を含む): 45904320

約数和(自身を除く): 27214932

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 81971, 163942, 245913, 327884, 491826, 983652, 1557449, 3114898, 4672347, 6229796, 9344694, 18689388]

約数ペア:

[(1, 18689388), (2, 9344694), (3, 6229796), (4, 4672347), (6, 3114898), (12, 1557449), (19, 983652), (38, 491826), (57, 327884), (76, 245913), (114, 163942), (228, 81971)]