20197619913

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^2\times {\mathrm{11273}}^1$

素因数の和:11398

約数の個数: 48

約数和(自身を含む): 30732022080

約数和(自身を除く): 10534402167

約数列:

[1, 3, 17, 19, 43, 51, 57, 129, 323, 731, 817, 969, 1849, 2193, 2451, 5547, 11273, 13889, 31433, 33819, 35131, 41667, 94299, 105393, 191641, 214187, 484739, 574923, 597227, 642561, 1454217, 1791681, 3641179, 8240563, 9210041, 10923537, 20843777, 24721689, 27630123, 62531331, 156570697, 354344209, 396031763, 469712091, 1063032627, 1188095289, 6732539971, 20197619913]

約数ペア:

[(1, 20197619913), (3, 6732539971), (17, 1188095289), (19, 1063032627), (43, 469712091), (51, 396031763), (57, 354344209), (129, 156570697), (323, 62531331), (731, 27630123), (817, 24721689), (969, 20843777), (1849, 10923537), (2193, 9210041), (2451, 8240563), (5547, 3641179), (11273, 1791681), (13889, 1454217), (31433, 642561), (33819, 597227), (35131, 574923), (41667, 484739), (94299, 214187), (105393, 191641)]