28740453

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{787}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 45993984

約数和(自身を除く): 17253531

約数列:

[1, 3, 7, 21, 37, 47, 111, 141, 259, 329, 777, 787, 987, 1739, 2361, 5217, 5509, 12173, 16527, 29119, 36519, 36989, 87357, 110967, 203833, 258923, 611499, 776769, 1368593, 4105779, 9580151, 28740453]

約数ペア:

[(1, 28740453), (3, 9580151), (7, 4105779), (21, 1368593), (37, 776769), (47, 611499), (111, 258923), (141, 203833), (259, 110967), (329, 87357), (777, 36989), (787, 36519), (987, 29119), (1739, 16527), (2361, 12173), (5217, 5509)]