216689785

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{751}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 294110208

約数和(自身を除く): 77420423

約数列:

[1, 5, 13, 23, 65, 115, 193, 299, 751, 965, 1495, 2509, 3755, 4439, 9763, 12545, 17273, 22195, 48815, 57707, 86365, 144943, 224549, 288535, 724715, 1122745, 1884259, 3333689, 9421295, 16668445, 43337957, 216689785]

約数ペア:

[(1, 216689785), (5, 43337957), (13, 16668445), (23, 9421295), (65, 3333689), (115, 1884259), (193, 1122745), (299, 724715), (751, 288535), (965, 224549), (1495, 144943), (2509, 86365), (3755, 57707), (4439, 48815), (9763, 22195), (12545, 17273)]