21811130

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{233}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 46096128

約数和(自身を除く): 24284998

約数列:

[1, 2, 5, 10, 11, 22, 23, 37, 46, 55, 74, 110, 115, 185, 230, 233, 253, 370, 407, 466, 506, 814, 851, 1165, 1265, 1702, 2035, 2330, 2530, 2563, 4070, 4255, 5126, 5359, 8510, 8621, 9361, 10718, 12815, 17242, 18722, 25630, 26795, 43105, 46805, 53590, 58949, 86210, 93610, 94831, 117898, 189662, 198283, 294745, 396566, 474155, 589490, 948310, 991415, 1982830, 2181113, 4362226, 10905565, 21811130]

約数ペア:

[(1, 21811130), (2, 10905565), (5, 4362226), (10, 2181113), (11, 1982830), (22, 991415), (23, 948310), (37, 589490), (46, 474155), (55, 396566), (74, 294745), (110, 198283), (115, 189662), (185, 117898), (230, 94831), (233, 93610), (253, 86210), (370, 58949), (407, 53590), (466, 46805), (506, 43105), (814, 26795), (851, 25630), (1165, 18722), (1265, 17242), (1702, 12815), (2035, 10718), (2330, 9361), (2530, 8621), (2563, 8510), (4070, 5359), (4255, 5126)]