638996673

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{569}}^1\times {\mathrm{1009}}^1$

素因数の和:1641

約数の個数: 32

約数和(自身を含む): 994809600

約数和(自身を除く): 355812927

約数列:

[1, 3, 7, 21, 53, 159, 371, 569, 1009, 1113, 1707, 3027, 3983, 7063, 11949, 21189, 30157, 53477, 90471, 160431, 211099, 374339, 574121, 633297, 1123017, 1722363, 4018847, 12056541, 30428413, 91285239, 212998891, 638996673]

約数ペア:

[(1, 638996673), (3, 212998891), (7, 91285239), (21, 30428413), (53, 12056541), (159, 4018847), (371, 1722363), (569, 1123017), (1009, 633297), (1113, 574121), (1707, 374339), (3027, 211099), (3983, 160431), (7063, 90471), (11949, 53477), (21189, 30157)]