21081465605

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{571}}^1\times {\mathrm{619}}^1$

素因数の和:1425

約数の個数: 32

約数和(自身を含む): 25874534400

約数和(自身を除く): 4793068795

約数列:

[1, 5, 79, 151, 395, 571, 619, 755, 2855, 3095, 11929, 45109, 48901, 59645, 86221, 93469, 225545, 244505, 353449, 431105, 467345, 1767245, 6811459, 7384051, 27922471, 34057295, 36920255, 53370799, 139612355, 266853995, 4216293121, 21081465605]

約数ペア:

[(1, 21081465605), (5, 4216293121), (79, 266853995), (151, 139612355), (395, 53370799), (571, 36920255), (619, 34057295), (755, 27922471), (2855, 7384051), (3095, 6811459), (11929, 1767245), (45109, 467345), (48901, 431105), (59645, 353449), (86221, 244505), (93469, 225545)]