17820285

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 34947072

約数和(自身を除く): 17126787

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 47, 69, 105, 115, 141, 157, 161, 235, 329, 345, 471, 483, 705, 785, 805, 987, 1081, 1099, 1645, 2355, 2415, 3243, 3297, 3611, 4935, 5405, 5495, 7379, 7567, 10833, 16215, 16485, 18055, 22137, 22701, 25277, 36895, 37835, 51653, 54165, 75831, 110685, 113505, 126385, 154959, 169717, 258265, 379155, 509151, 774795, 848585, 1188019, 2545755, 3564057, 5940095, 17820285]

約数ペア:

[(1, 17820285), (3, 5940095), (5, 3564057), (7, 2545755), (15, 1188019), (21, 848585), (23, 774795), (35, 509151), (47, 379155), (69, 258265), (105, 169717), (115, 154959), (141, 126385), (157, 113505), (161, 110685), (235, 75831), (329, 54165), (345, 51653), (471, 37835), (483, 36895), (705, 25277), (785, 22701), (805, 22137), (987, 18055), (1081, 16485), (1099, 16215), (1645, 10833), (2355, 7567), (2415, 7379), (3243, 5495), (3297, 5405), (3611, 4935)]