18338944

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 40098240

約数和(自身を除く): 21759296

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 103, 104, 107, 128, 206, 208, 214, 412, 416, 428, 824, 832, 856, 1339, 1391, 1648, 1664, 1712, 2678, 2782, 3296, 3424, 5356, 5564, 6592, 6848, 10712, 11021, 11128, 13184, 13696, 21424, 22042, 22256, 42848, 44084, 44512, 85696, 88168, 89024, 143273, 171392, 176336, 178048, 286546, 352672, 573092, 705344, 1146184, 1410688, 2292368, 4584736, 9169472, 18338944]

約数ペア:

[(1, 18338944), (2, 9169472), (4, 4584736), (8, 2292368), (13, 1410688), (16, 1146184), (26, 705344), (32, 573092), (52, 352672), (64, 286546), (103, 178048), (104, 176336), (107, 171392), (128, 143273), (206, 89024), (208, 88168), (214, 85696), (412, 44512), (416, 44084), (428, 42848), (824, 22256), (832, 22042), (856, 21424), (1339, 13696), (1391, 13184), (1648, 11128), (1664, 11021), (1712, 10712), (2678, 6848), (2782, 6592), (3296, 5564), (3424, 5356)]