27821255

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{569}}^1$

素因数の和:719

約数の個数: 32

約数和(自身を含む): 42024960

約数和(自身を除く): 14203705

約数列:

[1, 5, 7, 11, 35, 55, 77, 127, 385, 569, 635, 889, 1397, 2845, 3983, 4445, 6259, 6985, 9779, 19915, 31295, 43813, 48895, 72263, 219065, 361315, 505841, 794893, 2529205, 3974465, 5564251, 27821255]

約数ペア:

[(1, 27821255), (5, 5564251), (7, 3974465), (11, 2529205), (35, 794893), (55, 505841), (77, 361315), (127, 219065), (385, 72263), (569, 48895), (635, 43813), (889, 31295), (1397, 19915), (2845, 9779), (3983, 6985), (4445, 6259)]