21277648

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6551}}^1$

素因数の和:6595

約数の個数: 40

約数和(自身を含む): 48746880

約数和(自身を除く): 27469232

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 6551, 13102, 26204, 45857, 52408, 91714, 104816, 183428, 189979, 366856, 379958, 733712, 759916, 1329853, 1519832, 2659706, 3039664, 5319412, 10638824, 21277648]

約数ペア:

[(1, 21277648), (2, 10638824), (4, 5319412), (7, 3039664), (8, 2659706), (14, 1519832), (16, 1329853), (28, 759916), (29, 733712), (56, 379958), (58, 366856), (112, 189979), (116, 183428), (203, 104816), (232, 91714), (406, 52408), (464, 45857), (812, 26204), (1624, 13102), (3248, 6551)]