21217968

素因数分解:

$2^4\times 3^2\times {\mathrm{147347}}^1$

素因数の和:147361

約数の個数: 30

約数和(自身を含む): 59381244

約数和(自身を除く): 38163276

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 147347, 294694, 442041, 589388, 884082, 1178776, 1326123, 1768164, 2357552, 2652246, 3536328, 5304492, 7072656, 10608984, 21217968]

約数ペア:

[(1, 21217968), (2, 10608984), (3, 7072656), (4, 5304492), (6, 3536328), (8, 2652246), (9, 2357552), (12, 1768164), (16, 1326123), (18, 1178776), (24, 884082), (36, 589388), (48, 442041), (72, 294694), (144, 147347)]