18218538

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:200

約数の個数: 72

約数和(自身を含む): 43935372

約数和(自身を除く): 25716834

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 53, 78, 106, 113, 117, 159, 169, 226, 234, 318, 338, 339, 477, 507, 678, 689, 954, 1014, 1017, 1378, 1469, 1521, 2034, 2067, 2938, 3042, 4134, 4407, 5989, 6201, 8814, 8957, 11978, 12402, 13221, 17914, 17967, 19097, 26442, 26871, 35934, 38194, 53742, 53901, 57291, 77857, 80613, 107802, 114582, 155714, 161226, 171873, 233571, 343746, 467142, 700713, 1012141, 1401426, 2024282, 3036423, 6072846, 9109269, 18218538]

約数ペア:

[(1, 18218538), (2, 9109269), (3, 6072846), (6, 3036423), (9, 2024282), (13, 1401426), (18, 1012141), (26, 700713), (39, 467142), (53, 343746), (78, 233571), (106, 171873), (113, 161226), (117, 155714), (159, 114582), (169, 107802), (226, 80613), (234, 77857), (318, 57291), (338, 53901), (339, 53742), (477, 38194), (507, 35934), (678, 26871), (689, 26442), (954, 19097), (1014, 17967), (1017, 17914), (1378, 13221), (1469, 12402), (1521, 11978), (2034, 8957), (2067, 8814), (2938, 6201), (3042, 5989), (4134, 4407)]