20942118

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 49420800

約数和(自身を除く): 28478682

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 43, 54, 58, 86, 87, 129, 174, 258, 261, 311, 387, 522, 622, 774, 783, 933, 1161, 1247, 1566, 1866, 2322, 2494, 2799, 3741, 5598, 7482, 8397, 9019, 11223, 13373, 16794, 18038, 22446, 26746, 27057, 33669, 40119, 54114, 67338, 80238, 81171, 120357, 162342, 240714, 243513, 361071, 387817, 487026, 722142, 775634, 1163451, 2326902, 3490353, 6980706, 10471059, 20942118]

約数ペア:

[(1, 20942118), (2, 10471059), (3, 6980706), (6, 3490353), (9, 2326902), (18, 1163451), (27, 775634), (29, 722142), (43, 487026), (54, 387817), (58, 361071), (86, 243513), (87, 240714), (129, 162342), (174, 120357), (258, 81171), (261, 80238), (311, 67338), (387, 54114), (522, 40119), (622, 33669), (774, 27057), (783, 26746), (933, 22446), (1161, 18038), (1247, 16794), (1566, 13373), (1866, 11223), (2322, 9019), (2494, 8397), (2799, 7482), (3741, 5598)]