18221238

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{283}}^1$

素因数の和:378

約数の個数: 72

約数和(自身を含む): 46718568

約数和(自身を除く): 28497330

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 73, 98, 126, 146, 147, 219, 283, 294, 438, 441, 511, 566, 657, 849, 882, 1022, 1314, 1533, 1698, 1981, 2547, 3066, 3577, 3962, 4599, 5094, 5943, 7154, 9198, 10731, 11886, 13867, 17829, 20659, 21462, 27734, 32193, 35658, 41318, 41601, 61977, 64386, 83202, 123954, 124803, 144613, 185931, 249606, 289226, 371862, 433839, 867678, 1012291, 1301517, 2024582, 2603034, 3036873, 6073746, 9110619, 18221238]

約数ペア:

[(1, 18221238), (2, 9110619), (3, 6073746), (6, 3036873), (7, 2603034), (9, 2024582), (14, 1301517), (18, 1012291), (21, 867678), (42, 433839), (49, 371862), (63, 289226), (73, 249606), (98, 185931), (126, 144613), (146, 124803), (147, 123954), (219, 83202), (283, 64386), (294, 61977), (438, 41601), (441, 41318), (511, 35658), (566, 32193), (657, 27734), (849, 21462), (882, 20659), (1022, 17829), (1314, 13867), (1533, 11886), (1698, 10731), (1981, 9198), (2547, 7154), (3066, 5943), (3577, 5094), (3962, 4599)]