19706995

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3011}}^1$

素因数の和:3051

約数の個数: 32

約数和(自身を含む): 31228416

約数和(自身を除く): 11521421

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 187, 385, 595, 935, 1309, 3011, 6545, 15055, 21077, 33121, 51187, 105385, 165605, 231847, 255935, 358309, 563057, 1159235, 1791545, 2815285, 3941399, 19706995]

約数ペア:

[(1, 19706995), (5, 3941399), (7, 2815285), (11, 1791545), (17, 1159235), (35, 563057), (55, 358309), (77, 255935), (85, 231847), (119, 165605), (187, 105385), (385, 51187), (595, 33121), (935, 21077), (1309, 15055), (3011, 6545)]