21393888

素因数分解:

$2^5\times 3^1\times {\mathrm{17}}^1\times {\mathrm{13109}}^1$

素因数の和:13139

約数の個数: 48

約数和(自身を含む): 59466960

約数和(自身を除く): 38073072

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 32, 34, 48, 51, 68, 96, 102, 136, 204, 272, 408, 544, 816, 1632, 13109, 26218, 39327, 52436, 78654, 104872, 157308, 209744, 222853, 314616, 419488, 445706, 629232, 668559, 891412, 1258464, 1337118, 1782824, 2674236, 3565648, 5348472, 7131296, 10696944, 21393888]

約数ペア:

[(1, 21393888), (2, 10696944), (3, 7131296), (4, 5348472), (6, 3565648), (8, 2674236), (12, 1782824), (16, 1337118), (17, 1258464), (24, 891412), (32, 668559), (34, 629232), (48, 445706), (51, 419488), (68, 314616), (96, 222853), (102, 209744), (136, 157308), (204, 104872), (272, 78654), (408, 52436), (544, 39327), (816, 26218), (1632, 13109)]