21278832

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:410

約数の個数: 80

約数和(自身を含む): 59058720

約数和(自身を除く): 37779888

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 89, 102, 136, 178, 204, 267, 272, 293, 356, 408, 534, 586, 712, 816, 879, 1068, 1172, 1424, 1513, 1758, 2136, 2344, 3026, 3516, 4272, 4539, 4688, 4981, 6052, 7032, 9078, 9962, 12104, 14064, 14943, 18156, 19924, 24208, 26077, 29886, 36312, 39848, 52154, 59772, 72624, 78231, 79696, 104308, 119544, 156462, 208616, 239088, 312924, 417232, 443309, 625848, 886618, 1251696, 1329927, 1773236, 2659854, 3546472, 5319708, 7092944, 10639416, 21278832]

約数ペア:

[(1, 21278832), (2, 10639416), (3, 7092944), (4, 5319708), (6, 3546472), (8, 2659854), (12, 1773236), (16, 1329927), (17, 1251696), (24, 886618), (34, 625848), (48, 443309), (51, 417232), (68, 312924), (89, 239088), (102, 208616), (136, 156462), (178, 119544), (204, 104308), (267, 79696), (272, 78231), (293, 72624), (356, 59772), (408, 52154), (534, 39848), (586, 36312), (712, 29886), (816, 26077), (879, 24208), (1068, 19924), (1172, 18156), (1424, 14943), (1513, 14064), (1758, 12104), (2136, 9962), (2344, 9078), (3026, 7032), (3516, 6052), (4272, 4981), (4539, 4688)]