21538695

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{419}}^1$

素因数の和:599

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 14749305

約数列:

[1, 3, 5, 15, 23, 69, 115, 149, 345, 419, 447, 745, 1257, 2095, 2235, 3427, 6285, 9637, 10281, 17135, 28911, 48185, 51405, 62431, 144555, 187293, 312155, 936465, 1435913, 4307739, 7179565, 21538695]

約数ペア:

[(1, 21538695), (3, 7179565), (5, 4307739), (15, 1435913), (23, 936465), (69, 312155), (115, 187293), (149, 144555), (345, 62431), (419, 51405), (447, 48185), (745, 28911), (1257, 17135), (2095, 10281), (2235, 9637), (3427, 6285)]