21446075

素因数分解:

$5^2\times 7^3\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:133

約数の個数: 48

約数和(自身を含む): 32289600

約数和(自身を除く): 10843525

約数列:

[1, 5, 7, 25, 35, 41, 49, 61, 175, 205, 245, 287, 305, 343, 427, 1025, 1225, 1435, 1525, 1715, 2009, 2135, 2501, 2989, 7175, 8575, 10045, 10675, 12505, 14063, 14945, 17507, 20923, 50225, 62525, 70315, 74725, 87535, 104615, 122549, 351575, 437675, 523075, 612745, 857843, 3063725, 4289215, 21446075]

約数ペア:

[(1, 21446075), (5, 4289215), (7, 3063725), (25, 857843), (35, 612745), (41, 523075), (49, 437675), (61, 351575), (175, 122549), (205, 104615), (245, 87535), (287, 74725), (305, 70315), (343, 62525), (427, 50225), (1025, 20923), (1225, 17507), (1435, 14945), (1525, 14063), (1715, 12505), (2009, 10675), (2135, 10045), (2501, 8575), (2989, 7175)]