21054852

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6427}}^1$

素因数の和:6457

約数の個数: 72

約数和(自身を含む): 65514176

約数和(自身を除く): 44459324

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 6427, 12854, 19281, 25708, 38562, 44989, 57843, 77124, 83551, 89978, 115686, 134967, 167102, 179956, 231372, 250653, 269934, 334204, 404901, 501306, 539868, 584857, 751959, 809802, 1002612, 1169714, 1503918, 1619604, 1754571, 2339428, 3007836, 3509142, 5263713, 7018284, 10527426, 21054852]

約数ペア:

[(1, 21054852), (2, 10527426), (3, 7018284), (4, 5263713), (6, 3509142), (7, 3007836), (9, 2339428), (12, 1754571), (13, 1619604), (14, 1503918), (18, 1169714), (21, 1002612), (26, 809802), (28, 751959), (36, 584857), (39, 539868), (42, 501306), (52, 404901), (63, 334204), (78, 269934), (84, 250653), (91, 231372), (117, 179956), (126, 167102), (156, 134967), (182, 115686), (234, 89978), (252, 83551), (273, 77124), (364, 57843), (468, 44989), (546, 38562), (819, 25708), (1092, 19281), (1638, 12854), (3276, 6427)]