21198065

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1549}}^1$

素因数の和:1601

約数の個数: 32

約数和(自身を含む): 32140800

約数和(自身を除く): 10942735

約数列:

[1, 5, 7, 17, 23, 35, 85, 115, 119, 161, 391, 595, 805, 1549, 1955, 2737, 7745, 10843, 13685, 26333, 35627, 54215, 131665, 178135, 184331, 249389, 605659, 921655, 1246945, 3028295, 4239613, 21198065]

約数ペア:

[(1, 21198065), (5, 4239613), (7, 3028295), (17, 1246945), (23, 921655), (35, 605659), (85, 249389), (115, 184331), (119, 178135), (161, 131665), (391, 54215), (595, 35627), (805, 26333), (1549, 13685), (1955, 10843), (2737, 7745)]