21040696

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1181}}^1$

素因数の和:1335

約数の個数: 32

約数和(自身を含む): 42126480

約数和(自身を除く): 21085784

約数列:

[1, 2, 4, 8, 17, 34, 68, 131, 136, 262, 524, 1048, 1181, 2227, 2362, 4454, 4724, 8908, 9448, 17816, 20077, 40154, 80308, 154711, 160616, 309422, 618844, 1237688, 2630087, 5260174, 10520348, 21040696]

約数ペア:

[(1, 21040696), (2, 10520348), (4, 5260174), (8, 2630087), (17, 1237688), (34, 618844), (68, 309422), (131, 160616), (136, 154711), (262, 80308), (524, 40154), (1048, 20077), (1181, 17816), (2227, 9448), (2362, 8908), (4454, 4724)]