19665688

素因数分解:

$2^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{4231}}^1$

素因数の和:4327

約数の個数: 32

約数和(自身を含む): 42658560

約数和(自身を除く): 22992872

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 83, 166, 332, 581, 664, 1162, 2324, 4231, 4648, 8462, 16924, 29617, 33848, 59234, 118468, 236936, 351173, 702346, 1404692, 2458211, 2809384, 4916422, 9832844, 19665688]

約数ペア:

[(1, 19665688), (2, 9832844), (4, 4916422), (7, 2809384), (8, 2458211), (14, 1404692), (28, 702346), (56, 351173), (83, 236936), (166, 118468), (332, 59234), (581, 33848), (664, 29617), (1162, 16924), (2324, 8462), (4231, 4648)]