21325986

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:168

約数の個数: 96

約数和(自身を含む): 53778816

約数和(自身を除く): 32452830

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 37, 41, 66, 71, 74, 82, 99, 111, 123, 142, 198, 213, 222, 246, 333, 369, 407, 426, 451, 639, 666, 738, 781, 814, 902, 1221, 1278, 1353, 1517, 1562, 2343, 2442, 2627, 2706, 2911, 3034, 3663, 4059, 4551, 4686, 5254, 5822, 7029, 7326, 7881, 8118, 8733, 9102, 13653, 14058, 15762, 16687, 17466, 23643, 26199, 27306, 28897, 32021, 33374, 47286, 50061, 52398, 57794, 64042, 86691, 96063, 100122, 107707, 150183, 173382, 192126, 215414, 260073, 288189, 300366, 323121, 520146, 576378, 646242, 969363, 1184777, 1938726, 2369554, 3554331, 7108662, 10662993, 21325986]

約数ペア:

[(1, 21325986), (2, 10662993), (3, 7108662), (6, 3554331), (9, 2369554), (11, 1938726), (18, 1184777), (22, 969363), (33, 646242), (37, 576378), (41, 520146), (66, 323121), (71, 300366), (74, 288189), (82, 260073), (99, 215414), (111, 192126), (123, 173382), (142, 150183), (198, 107707), (213, 100122), (222, 96063), (246, 86691), (333, 64042), (369, 57794), (407, 52398), (426, 50061), (451, 47286), (639, 33374), (666, 32021), (738, 28897), (781, 27306), (814, 26199), (902, 23643), (1221, 17466), (1278, 16687), (1353, 15762), (1517, 14058), (1562, 13653), (2343, 9102), (2442, 8733), (2627, 8118), (2706, 7881), (2911, 7326), (3034, 7029), (3663, 5822), (4059, 5254), (4551, 4686)]