19716688

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:379

約数の個数: 40

約数和(自身を含む): 39497472

約数和(自身を除く): 19780784

約数列:

[1, 2, 4, 8, 16, 47, 94, 157, 167, 188, 314, 334, 376, 628, 668, 752, 1256, 1336, 2512, 2672, 7379, 7849, 14758, 15698, 26219, 29516, 31396, 52438, 59032, 62792, 104876, 118064, 125584, 209752, 419504, 1232293, 2464586, 4929172, 9858344, 19716688]

約数ペア:

[(1, 19716688), (2, 9858344), (4, 4929172), (8, 2464586), (16, 1232293), (47, 419504), (94, 209752), (157, 125584), (167, 118064), (188, 104876), (314, 62792), (334, 59032), (376, 52438), (628, 31396), (668, 29516), (752, 26219), (1256, 15698), (1336, 14758), (2512, 7849), (2672, 7379)]