215693145

素因数分解:

$3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{10723}}^1$

素因数の和:10886

約数の個数: 32

約数和(自身を含む): 386064000

約数和(自身を除く): 170370855

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 149, 447, 745, 1341, 2235, 4023, 6705, 10723, 20115, 32169, 53615, 96507, 160845, 289521, 482535, 1447605, 1597727, 4793181, 7988635, 14379543, 23965905, 43138629, 71897715, 215693145]

約数ペア:

[(1, 215693145), (3, 71897715), (5, 43138629), (9, 23965905), (15, 14379543), (27, 7988635), (45, 4793181), (135, 1597727), (149, 1447605), (447, 482535), (745, 289521), (1341, 160845), (2235, 96507), (4023, 53615), (6705, 32169), (10723, 20115)]