51905847

素因数分解:

$3^1\times 7^3\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:788

約数の個数: 32

約数和(自身を含む): 81932800

約数和(自身を除く): 30026953

約数列:

[1, 3, 7, 21, 49, 73, 147, 219, 343, 511, 691, 1029, 1533, 2073, 3577, 4837, 10731, 14511, 25039, 33859, 50443, 75117, 101577, 151329, 237013, 353101, 711039, 1059303, 2471707, 7415121, 17301949, 51905847]

約数ペア:

[(1, 51905847), (3, 17301949), (7, 7415121), (21, 2471707), (49, 1059303), (73, 711039), (147, 353101), (219, 237013), (343, 151329), (511, 101577), (691, 75117), (1029, 50443), (1533, 33859), (2073, 25039), (3577, 14511), (4837, 10731)]