20892105

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{503}}^1$

素因数の和:598

約数の個数: 48

約数和(自身を含む): 39626496

約数和(自身を除く): 18734391

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 71, 117, 195, 213, 355, 503, 585, 639, 923, 1065, 1509, 2515, 2769, 3195, 4527, 4615, 6539, 7545, 8307, 13845, 19617, 22635, 32695, 35713, 41535, 58851, 98085, 107139, 178565, 294255, 321417, 464269, 535695, 1392807, 1607085, 2321345, 4178421, 6964035, 20892105]

約数ペア:

[(1, 20892105), (3, 6964035), (5, 4178421), (9, 2321345), (13, 1607085), (15, 1392807), (39, 535695), (45, 464269), (65, 321417), (71, 294255), (117, 178565), (195, 107139), (213, 98085), (355, 58851), (503, 41535), (585, 35713), (639, 32695), (923, 22635), (1065, 19617), (1509, 13845), (2515, 8307), (2769, 7545), (3195, 6539), (4527, 4615)]