9920972

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{193}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 17795232

約数和(自身を除く): 7874260

約数列:

[1, 2, 4, 71, 142, 181, 193, 284, 362, 386, 724, 772, 12851, 13703, 25702, 27406, 34933, 51404, 54812, 69866, 139732, 2480243, 4960486, 9920972]

約数ペア:

[(1, 9920972), (2, 4960486), (4, 2480243), (71, 139732), (142, 69866), (181, 54812), (193, 51404), (284, 34933), (362, 27406), (386, 25702), (724, 13703), (772, 12851)]