210840705

素因数分解:

$3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{25603}}^1$

素因数の和:25678

約数の個数: 32

約数和(自身を含む): 380987520

約数和(自身を除く): 170146815

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 135, 183, 305, 549, 915, 1647, 2745, 8235, 25603, 76809, 128015, 230427, 384045, 691281, 1152135, 1561783, 3456405, 4685349, 7808915, 14056047, 23426745, 42168141, 70280235, 210840705]

約数ペア:

[(1, 210840705), (3, 70280235), (5, 42168141), (9, 23426745), (15, 14056047), (27, 7808915), (45, 4685349), (61, 3456405), (135, 1561783), (183, 1152135), (305, 691281), (549, 384045), (915, 230427), (1647, 128015), (2745, 76809), (8235, 25603)]