19953138

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{311}}^1$

素因数の和:387

約数の個数: 48

約数和(自身を含む): 43677504

約数和(自身を除く): 23724366

約数列:

[1, 2, 3, 6, 17, 34, 37, 51, 74, 102, 111, 222, 289, 311, 578, 622, 629, 867, 933, 1258, 1734, 1866, 1887, 3774, 5287, 10574, 10693, 11507, 15861, 21386, 23014, 31722, 32079, 34521, 64158, 69042, 89879, 179758, 195619, 269637, 391238, 539274, 586857, 1173714, 3325523, 6651046, 9976569, 19953138]

約数ペア:

[(1, 19953138), (2, 9976569), (3, 6651046), (6, 3325523), (17, 1173714), (34, 586857), (37, 539274), (51, 391238), (74, 269637), (102, 195619), (111, 179758), (222, 89879), (289, 69042), (311, 64158), (578, 34521), (622, 32079), (629, 31722), (867, 23014), (933, 21386), (1258, 15861), (1734, 11507), (1866, 10693), (1887, 10574), (3774, 5287)]