19955705

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3049}}^1$

素因数の和:3089

約数の個数: 32

約数和(自身を含む): 31622400

約数和(自身を除く): 11666695

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 187, 385, 595, 935, 1309, 3049, 6545, 15245, 21343, 33539, 51833, 106715, 167695, 234773, 259165, 362831, 570163, 1173865, 1814155, 2850815, 3991141, 19955705]

約数ペア:

[(1, 19955705), (5, 3991141), (7, 2850815), (11, 1814155), (17, 1173865), (35, 570163), (55, 362831), (77, 259165), (85, 234773), (119, 167695), (187, 106715), (385, 51833), (595, 33539), (935, 21343), (1309, 15245), (3049, 6545)]