261145209

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{3541}}^1$

素因数の和:3649

約数の個数: 32

約数和(自身を含む): 393530368

約数和(自身を除く): 132385159

約数列:

[1, 3, 13, 31, 39, 61, 93, 183, 403, 793, 1209, 1891, 2379, 3541, 5673, 10623, 24583, 46033, 73749, 109771, 138099, 216001, 329313, 648003, 1427023, 2808013, 4281069, 6696031, 8424039, 20088093, 87048403, 261145209]

約数ペア:

[(1, 261145209), (3, 87048403), (13, 20088093), (31, 8424039), (39, 6696031), (61, 4281069), (93, 2808013), (183, 1427023), (403, 648003), (793, 329313), (1209, 216001), (1891, 138099), (2379, 109771), (3541, 73749), (5673, 46033), (10623, 24583)]