12123678

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 29145600

約数和(自身を除く): 17021922

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 49, 86, 98, 129, 137, 147, 258, 274, 294, 301, 343, 411, 602, 686, 822, 903, 959, 1029, 1806, 1918, 2058, 2107, 2877, 4214, 5754, 5891, 6321, 6713, 11782, 12642, 13426, 14749, 17673, 20139, 29498, 35346, 40278, 41237, 44247, 46991, 82474, 88494, 93982, 123711, 140973, 247422, 281946, 288659, 577318, 865977, 1731954, 2020613, 4041226, 6061839, 12123678]

約数ペア:

[(1, 12123678), (2, 6061839), (3, 4041226), (6, 2020613), (7, 1731954), (14, 865977), (21, 577318), (42, 288659), (43, 281946), (49, 247422), (86, 140973), (98, 123711), (129, 93982), (137, 88494), (147, 82474), (258, 46991), (274, 44247), (294, 41237), (301, 40278), (343, 35346), (411, 29498), (602, 20139), (686, 17673), (822, 14749), (903, 13426), (959, 12642), (1029, 11782), (1806, 6713), (1918, 6321), (2058, 5891), (2107, 5754), (2877, 4214)]