18839418

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 42844032

約数和(自身を除く): 24004614

約数列:

[1, 2, 3, 6, 13, 26, 39, 41, 43, 78, 82, 86, 123, 129, 137, 246, 258, 274, 411, 533, 559, 822, 1066, 1118, 1599, 1677, 1763, 1781, 3198, 3354, 3526, 3562, 5289, 5343, 5617, 5891, 10578, 10686, 11234, 11782, 16851, 17673, 22919, 33702, 35346, 45838, 68757, 73021, 76583, 137514, 146042, 153166, 219063, 229749, 241531, 438126, 459498, 483062, 724593, 1449186, 3139903, 6279806, 9419709, 18839418]

約数ペア:

[(1, 18839418), (2, 9419709), (3, 6279806), (6, 3139903), (13, 1449186), (26, 724593), (39, 483062), (41, 459498), (43, 438126), (78, 241531), (82, 229749), (86, 219063), (123, 153166), (129, 146042), (137, 137514), (246, 76583), (258, 73021), (274, 68757), (411, 45838), (533, 35346), (559, 33702), (822, 22919), (1066, 17673), (1118, 16851), (1599, 11782), (1677, 11234), (1763, 10686), (1781, 10578), (3198, 5891), (3354, 5617), (3526, 5343), (3562, 5289)]