21910845

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{97}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 39711168

約数和(自身を除く): 17800323

約数列:

[1, 3, 5, 11, 15, 33, 37, 55, 97, 111, 165, 185, 291, 407, 485, 555, 1067, 1221, 1369, 1455, 2035, 3201, 3589, 4107, 5335, 6105, 6845, 10767, 15059, 16005, 17945, 20535, 39479, 45177, 53835, 75295, 118437, 132793, 197395, 225885, 398379, 592185, 663965, 1460723, 1991895, 4382169, 7303615, 21910845]

約数ペア:

[(1, 21910845), (3, 7303615), (5, 4382169), (11, 1991895), (15, 1460723), (33, 663965), (37, 592185), (55, 398379), (97, 225885), (111, 197395), (165, 132793), (185, 118437), (291, 75295), (407, 53835), (485, 45177), (555, 39479), (1067, 20535), (1221, 17945), (1369, 16005), (1455, 15059), (2035, 10767), (3201, 6845), (3589, 6105), (4107, 5335)]