21443305

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 29635200

約数和(自身を除く): 8191895

約数列:

[1, 5, 13, 19, 65, 95, 97, 179, 247, 485, 895, 1235, 1261, 1843, 2327, 3401, 6305, 9215, 11635, 17005, 17363, 23959, 44213, 86815, 119795, 221065, 225719, 329897, 1128595, 1649485, 4288661, 21443305]

約数ペア:

[(1, 21443305), (5, 4288661), (13, 1649485), (19, 1128595), (65, 329897), (95, 225719), (97, 221065), (179, 119795), (247, 86815), (485, 44213), (895, 23959), (1235, 17363), (1261, 17005), (1843, 11635), (2327, 9215), (3401, 6305)]