28054215

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{4241}}^1$

素因数の和:4269

約数の個数: 48

約数和(自身を含む): 58030560

約数和(自身を除く): 29976345

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 441, 735, 945, 1323, 2205, 4241, 6615, 12723, 21205, 29687, 38169, 63615, 89061, 114507, 148435, 190845, 207809, 267183, 445305, 572535, 623427, 801549, 1039045, 1335915, 1870281, 3117135, 4007745, 5610843, 9351405, 28054215]

約数ペア:

[(1, 28054215), (3, 9351405), (5, 5610843), (7, 4007745), (9, 3117135), (15, 1870281), (21, 1335915), (27, 1039045), (35, 801549), (45, 623427), (49, 572535), (63, 445305), (105, 267183), (135, 207809), (147, 190845), (189, 148435), (245, 114507), (315, 89061), (441, 63615), (735, 38169), (945, 29687), (1323, 21205), (2205, 12723), (4241, 6615)]