20310402

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 28073598

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 71, 98, 139, 142, 147, 213, 278, 294, 343, 417, 426, 497, 686, 834, 973, 994, 1029, 1491, 1946, 2058, 2919, 2982, 3479, 5838, 6811, 6958, 9869, 10437, 13622, 19738, 20433, 20874, 24353, 29607, 40866, 47677, 48706, 59214, 69083, 73059, 95354, 138166, 143031, 146118, 207249, 286062, 414498, 483581, 967162, 1450743, 2901486, 3385067, 6770134, 10155201, 20310402]

約数ペア:

[(1, 20310402), (2, 10155201), (3, 6770134), (6, 3385067), (7, 2901486), (14, 1450743), (21, 967162), (42, 483581), (49, 414498), (71, 286062), (98, 207249), (139, 146118), (142, 143031), (147, 138166), (213, 95354), (278, 73059), (294, 69083), (343, 59214), (417, 48706), (426, 47677), (497, 40866), (686, 29607), (834, 24353), (973, 20874), (994, 20433), (1029, 19738), (1491, 13622), (1946, 10437), (2058, 9869), (2919, 6958), (2982, 6811), (3479, 5838)]