21553938

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:333

約数の個数: 80

約数和(自身を含む): 56105280

約数和(自身を除く): 34551342

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 83, 126, 162, 166, 189, 229, 249, 378, 458, 498, 567, 581, 687, 747, 1134, 1162, 1374, 1494, 1603, 1743, 2061, 2241, 3206, 3486, 4122, 4482, 4809, 5229, 6183, 6723, 9618, 10458, 12366, 13446, 14427, 15687, 18549, 19007, 28854, 31374, 37098, 38014, 43281, 47061, 57021, 86562, 94122, 114042, 129843, 133049, 171063, 259686, 266098, 342126, 399147, 513189, 798294, 1026378, 1197441, 1539567, 2394882, 3079134, 3592323, 7184646, 10776969, 21553938]

約数ペア:

[(1, 21553938), (2, 10776969), (3, 7184646), (6, 3592323), (7, 3079134), (9, 2394882), (14, 1539567), (18, 1197441), (21, 1026378), (27, 798294), (42, 513189), (54, 399147), (63, 342126), (81, 266098), (83, 259686), (126, 171063), (162, 133049), (166, 129843), (189, 114042), (229, 94122), (249, 86562), (378, 57021), (458, 47061), (498, 43281), (567, 38014), (581, 37098), (687, 31374), (747, 28854), (1134, 19007), (1162, 18549), (1374, 15687), (1494, 14427), (1603, 13446), (1743, 12366), (2061, 10458), (2241, 9618), (3206, 6723), (3486, 6183), (4122, 5229), (4482, 4809)]