21812505

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{10169}}^1$

素因数の和:10201

約数の個数: 32

約数和(自身を含む): 41005440

約数和(自身を除く): 19192935

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145, 10169, 30507, 50845, 111859, 132197, 152535, 335577, 396591, 559295, 660985, 1454167, 1677885, 1982955, 4362501, 7270835, 21812505]

約数ペア:

[(1, 21812505), (3, 7270835), (5, 4362501), (11, 1982955), (13, 1677885), (15, 1454167), (33, 660985), (39, 559295), (55, 396591), (65, 335577), (143, 152535), (165, 132197), (195, 111859), (429, 50845), (715, 30507), (2145, 10169)]