19988916

素因数分解:

$2^2\times 3^1\times {\mathrm{181}}^1\times {\mathrm{9203}}^1$

素因数の和:9391

約数の個数: 24

約数和(自身を含む): 46903584

約数和(自身を除く): 26914668

約数列:

[1, 2, 3, 4, 6, 12, 181, 362, 543, 724, 1086, 2172, 9203, 18406, 27609, 36812, 55218, 110436, 1665743, 3331486, 4997229, 6662972, 9994458, 19988916]

約数ペア:

[(1, 19988916), (2, 9994458), (3, 6662972), (4, 4997229), (6, 3331486), (12, 1665743), (181, 110436), (362, 55218), (543, 36812), (724, 27609), (1086, 18406), (2172, 9203)]