16618945

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:130

約数の個数: 48

約数和(自身を含む): 25463808

約数和(自身を除く): 8844863

約数列:

[1, 5, 7, 17, 31, 35, 53, 85, 119, 155, 217, 265, 289, 371, 527, 595, 901, 1085, 1445, 1643, 1855, 2023, 2635, 3689, 4505, 6307, 8215, 8959, 10115, 11501, 15317, 18445, 27931, 31535, 44795, 57505, 62713, 76585, 107219, 139655, 195517, 313565, 474827, 536095, 977585, 2374135, 3323789, 16618945]

約数ペア:

[(1, 16618945), (5, 3323789), (7, 2374135), (17, 977585), (31, 536095), (35, 474827), (53, 313565), (85, 195517), (119, 139655), (155, 107219), (217, 76585), (265, 62713), (289, 57505), (371, 44795), (527, 31535), (595, 27931), (901, 18445), (1085, 15317), (1445, 11501), (1643, 10115), (1855, 8959), (2023, 8215), (2635, 6307), (3689, 4505)]