195405021

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{997}}^1$

素因数の和:1091

約数の個数: 64

約数和(自身を含む): 356405760

約数和(自身を除く): 161000739

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 61, 63, 119, 153, 183, 189, 357, 427, 459, 549, 997, 1037, 1071, 1281, 1647, 2991, 3111, 3213, 3843, 6979, 7259, 8973, 9333, 11529, 16949, 20937, 21777, 26919, 27999, 50847, 60817, 62811, 65331, 118643, 152541, 182451, 188433, 195993, 355929, 425719, 457623, 547353, 1033889, 1067787, 1277157, 1642059, 3101667, 3203361, 3831471, 7237223, 9305001, 11494413, 21711669, 27915003, 65135007, 195405021]

約数ペア:

[(1, 195405021), (3, 65135007), (7, 27915003), (9, 21711669), (17, 11494413), (21, 9305001), (27, 7237223), (51, 3831471), (61, 3203361), (63, 3101667), (119, 1642059), (153, 1277157), (183, 1067787), (189, 1033889), (357, 547353), (427, 457623), (459, 425719), (549, 355929), (997, 195993), (1037, 188433), (1071, 182451), (1281, 152541), (1647, 118643), (2991, 65331), (3111, 62811), (3213, 60817), (3843, 50847), (6979, 27999), (7259, 26919), (8973, 21777), (9333, 20937), (11529, 16949)]