81352509

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{3847}}^1$

素因数の和:3929

約数の個数: 32

約数和(自身を含む): 132986880

約数和(自身を除く): 51634371

約数列:

[1, 3, 7, 19, 21, 53, 57, 133, 159, 371, 399, 1007, 1113, 3021, 3847, 7049, 11541, 21147, 26929, 73093, 80787, 203891, 219279, 511651, 611673, 1427237, 1534953, 3873929, 4281711, 11621787, 27117503, 81352509]

約数ペア:

[(1, 81352509), (3, 27117503), (7, 11621787), (19, 4281711), (21, 3873929), (53, 1534953), (57, 1427237), (133, 611673), (159, 511651), (371, 219279), (399, 203891), (1007, 80787), (1113, 73093), (3021, 26929), (3847, 21147), (7049, 11541)]