19988244

素因数分解:

$2^2\times 3^2\times {\mathrm{67}}^1\times {\mathrm{8287}}^1$

素因数の和:8364

約数の個数: 36

約数和(自身を含む): 51286144

約数和(自身を除く): 31297900

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 67, 134, 201, 268, 402, 603, 804, 1206, 2412, 8287, 16574, 24861, 33148, 49722, 74583, 99444, 149166, 298332, 555229, 1110458, 1665687, 2220916, 3331374, 4997061, 6662748, 9994122, 19988244]

約数ペア:

[(1, 19988244), (2, 9994122), (3, 6662748), (4, 4997061), (6, 3331374), (9, 2220916), (12, 1665687), (18, 1110458), (36, 555229), (67, 298332), (134, 149166), (201, 99444), (268, 74583), (402, 49722), (603, 33148), (804, 24861), (1206, 16574), (2412, 8287)]