18984988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{1493}}^1$

素因数の和:1542

約数の個数: 36

約数和(自身を含む): 38527272

約数和(自身を除く): 19542284

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 289, 374, 578, 748, 1156, 1493, 2986, 3179, 5972, 6358, 12716, 16423, 25381, 32846, 50762, 65692, 101524, 279191, 431477, 558382, 862954, 1116764, 1725908, 4746247, 9492494, 18984988]

約数ペア:

[(1, 18984988), (2, 9492494), (4, 4746247), (11, 1725908), (17, 1116764), (22, 862954), (34, 558382), (44, 431477), (68, 279191), (187, 101524), (289, 65692), (374, 50762), (578, 32846), (748, 25381), (1156, 16423), (1493, 12716), (2986, 6358), (3179, 5972)]