18617478

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 42923520

約数和(自身を除く): 24306042

約数列:

[1, 2, 3, 6, 11, 22, 29, 33, 58, 66, 71, 87, 137, 142, 174, 213, 274, 319, 411, 426, 638, 781, 822, 957, 1507, 1562, 1914, 2059, 2343, 3014, 3973, 4118, 4521, 4686, 6177, 7946, 9042, 9727, 11919, 12354, 19454, 22649, 23838, 29181, 43703, 45298, 58362, 67947, 87406, 106997, 131109, 135894, 213994, 262218, 282083, 320991, 564166, 641982, 846249, 1692498, 3102913, 6205826, 9308739, 18617478]

約数ペア:

[(1, 18617478), (2, 9308739), (3, 6205826), (6, 3102913), (11, 1692498), (22, 846249), (29, 641982), (33, 564166), (58, 320991), (66, 282083), (71, 262218), (87, 213994), (137, 135894), (142, 131109), (174, 106997), (213, 87406), (274, 67947), (319, 58362), (411, 45298), (426, 43703), (638, 29181), (781, 23838), (822, 22649), (957, 19454), (1507, 12354), (1562, 11919), (1914, 9727), (2059, 9042), (2343, 7946), (3014, 6177), (3973, 4686), (4118, 4521)]