20921844671

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{461}}^1\times {\mathrm{1429}}^1$

素因数の和:2259

約数の個数: 32

約数和(自身を含む): 25897872000

約数和(自身を除く): 4976027329

約数列:

[1, 7, 13, 91, 349, 461, 1429, 2443, 3227, 4537, 5993, 10003, 18577, 31759, 41951, 130039, 160889, 498721, 658769, 1126223, 2091557, 3491047, 4611383, 6483373, 8563997, 14640899, 45383611, 59947979, 229910381, 1609372667, 2988834953, 20921844671]

約数ペア:

[(1, 20921844671), (7, 2988834953), (13, 1609372667), (91, 229910381), (349, 59947979), (461, 45383611), (1429, 14640899), (2443, 8563997), (3227, 6483373), (4537, 4611383), (5993, 3491047), (10003, 2091557), (18577, 1126223), (31759, 658769), (41951, 498721), (130039, 160889)]