40621721

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 51840000

約数和(自身を除く): 11218279

約数列:

[1, 7, 17, 29, 79, 119, 149, 203, 493, 553, 1043, 1343, 2291, 2533, 3451, 4321, 9401, 11771, 16037, 17731, 30247, 38947, 73457, 82397, 200107, 272629, 341359, 514199, 1400749, 2389513, 5803103, 40621721]

約数ペア:

[(1, 40621721), (7, 5803103), (17, 2389513), (29, 1400749), (79, 514199), (119, 341359), (149, 272629), (203, 200107), (493, 82397), (553, 73457), (1043, 38947), (1343, 30247), (2291, 17731), (2533, 16037), (3451, 11771), (4321, 9401)]