20982726

素因数分解:

$2^1\times 3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:451

約数の個数: 80

約数和(自身を含む): 52533360

約数和(自身を除く): 31550634

約数列:

[1, 2, 3, 6, 9, 17, 18, 19, 27, 34, 38, 51, 54, 57, 81, 102, 114, 153, 162, 171, 306, 323, 342, 401, 459, 513, 646, 802, 918, 969, 1026, 1203, 1377, 1539, 1938, 2406, 2754, 2907, 3078, 3609, 5814, 6817, 7218, 7619, 8721, 10827, 13634, 15238, 17442, 20451, 21654, 22857, 26163, 32481, 40902, 45714, 52326, 61353, 64962, 68571, 122706, 129523, 137142, 184059, 205713, 259046, 368118, 388569, 411426, 552177, 617139, 777138, 1104354, 1165707, 1234278, 2331414, 3497121, 6994242, 10491363, 20982726]

約数ペア:

[(1, 20982726), (2, 10491363), (3, 6994242), (6, 3497121), (9, 2331414), (17, 1234278), (18, 1165707), (19, 1104354), (27, 777138), (34, 617139), (38, 552177), (51, 411426), (54, 388569), (57, 368118), (81, 259046), (102, 205713), (114, 184059), (153, 137142), (162, 129523), (171, 122706), (306, 68571), (323, 64962), (342, 61353), (401, 52326), (459, 45714), (513, 40902), (646, 32481), (802, 26163), (918, 22857), (969, 21654), (1026, 20451), (1203, 17442), (1377, 15238), (1539, 13634), (1938, 10827), (2406, 8721), (2754, 7619), (2907, 7218), (3078, 6817), (3609, 5814)]