25678443

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{463}}^1$

素因数の和:631

約数の個数: 32

約数和(自身を含む): 41574400

約数和(自身を除く): 15895957

約数列:

[1, 3, 7, 19, 21, 57, 133, 139, 399, 417, 463, 973, 1389, 2641, 2919, 3241, 7923, 8797, 9723, 18487, 26391, 55461, 61579, 64357, 184737, 193071, 450499, 1222783, 1351497, 3668349, 8559481, 25678443]

約数ペア:

[(1, 25678443), (3, 8559481), (7, 3668349), (19, 1351497), (21, 1222783), (57, 450499), (133, 193071), (139, 184737), (399, 64357), (417, 61579), (463, 55461), (973, 26391), (1389, 18487), (2641, 9723), (2919, 8797), (3241, 7923)]