21984944

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{617}}^1$

素因数の和:773

約数の個数: 40

約数和(自身を含む): 45519408

約数和(自身を除く): 23534464

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 131, 136, 262, 272, 524, 617, 1048, 1234, 2096, 2227, 2468, 4454, 4936, 8908, 9872, 10489, 17816, 20978, 35632, 41956, 80827, 83912, 161654, 167824, 323308, 646616, 1293232, 1374059, 2748118, 5496236, 10992472, 21984944]

約数ペア:

[(1, 21984944), (2, 10992472), (4, 5496236), (8, 2748118), (16, 1374059), (17, 1293232), (34, 646616), (68, 323308), (131, 167824), (136, 161654), (262, 83912), (272, 80827), (524, 41956), (617, 35632), (1048, 20978), (1234, 17816), (2096, 10489), (2227, 9872), (2468, 8908), (4454, 4936)]