20411748

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{757}}^1$

素因数の和:881

約数の個数: 72

約数和(自身を含む): 59596992

約数和(自身を除く): 39185244

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 107, 126, 214, 252, 321, 428, 642, 749, 757, 963, 1284, 1498, 1514, 1926, 2247, 2271, 2996, 3028, 3852, 4494, 4542, 5299, 6741, 6813, 8988, 9084, 10598, 13482, 13626, 15897, 21196, 26964, 27252, 31794, 47691, 63588, 80999, 95382, 161998, 190764, 242997, 323996, 485994, 566993, 728991, 971988, 1133986, 1457982, 1700979, 2267972, 2915964, 3401958, 5102937, 6803916, 10205874, 20411748]

約数ペア:

[(1, 20411748), (2, 10205874), (3, 6803916), (4, 5102937), (6, 3401958), (7, 2915964), (9, 2267972), (12, 1700979), (14, 1457982), (18, 1133986), (21, 971988), (28, 728991), (36, 566993), (42, 485994), (63, 323996), (84, 242997), (107, 190764), (126, 161998), (214, 95382), (252, 80999), (321, 63588), (428, 47691), (642, 31794), (749, 27252), (757, 26964), (963, 21196), (1284, 15897), (1498, 13626), (1514, 13482), (1926, 10598), (2247, 9084), (2271, 8988), (2996, 6813), (3028, 6741), (3852, 5299), (4494, 4542)]