20367438

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^2$

素因数の和:178

約数の個数: 72

約数和(自身を含む): 51739128

約数和(自身を除く): 31371690

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 49, 73, 78, 91, 98, 146, 147, 182, 219, 273, 294, 438, 511, 546, 637, 949, 1022, 1274, 1533, 1898, 1911, 2847, 3066, 3577, 3822, 5329, 5694, 6643, 7154, 10658, 10731, 13286, 15987, 19929, 21462, 31974, 37303, 39858, 46501, 69277, 74606, 93002, 111909, 138554, 139503, 207831, 223818, 261121, 279006, 415662, 484939, 522242, 783363, 969878, 1454817, 1566726, 2909634, 3394573, 6789146, 10183719, 20367438]

約数ペア:

[(1, 20367438), (2, 10183719), (3, 6789146), (6, 3394573), (7, 2909634), (13, 1566726), (14, 1454817), (21, 969878), (26, 783363), (39, 522242), (42, 484939), (49, 415662), (73, 279006), (78, 261121), (91, 223818), (98, 207831), (146, 139503), (147, 138554), (182, 111909), (219, 93002), (273, 74606), (294, 69277), (438, 46501), (511, 39858), (546, 37303), (637, 31974), (949, 21462), (1022, 19929), (1274, 15987), (1533, 13286), (1898, 10731), (1911, 10658), (2847, 7154), (3066, 6643), (3577, 5694), (3822, 5329)]