19897809

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{1423}}^1$

素因数の和:1564

約数の個数: 16

約数和(自身を含む): 27340800

約数和(自身を除く): 7442991

約数列:

[1, 3, 59, 79, 177, 237, 1423, 4269, 4661, 13983, 83957, 112417, 251871, 337251, 6632603, 19897809]

約数ペア:

[(1, 19897809), (3, 6632603), (59, 337251), (79, 251871), (177, 112417), (237, 83957), (1423, 13983), (4269, 4661)]