21555184

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11321}}^1$

素因数の和:11353

約数の個数: 40

約数和(自身を含む): 50541408

約数和(自身を除く): 28986224

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 11321, 22642, 45284, 79247, 90568, 158494, 181136, 192457, 316988, 384914, 633976, 769828, 1267952, 1347199, 1539656, 2694398, 3079312, 5388796, 10777592, 21555184]

約数ペア:

[(1, 21555184), (2, 10777592), (4, 5388796), (7, 3079312), (8, 2694398), (14, 1539656), (16, 1347199), (17, 1267952), (28, 769828), (34, 633976), (56, 384914), (68, 316988), (112, 192457), (119, 181136), (136, 158494), (238, 90568), (272, 79247), (476, 45284), (952, 22642), (1904, 11321)]