20172547516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1\times {\mathrm{20947}}^1$

素因数の和:21514

約数の個数: 48

約数和(自身を含む): 39486142080

約数和(自身を除く): 19313594564

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 509, 946, 1018, 1892, 2036, 5599, 11198, 20947, 21887, 22396, 41894, 43774, 83788, 87548, 230417, 240757, 460834, 481514, 900721, 921668, 963028, 1801442, 3602884, 9907931, 10662023, 19815862, 21324046, 39631724, 42648092, 117282253, 234564506, 458466989, 469129012, 916933978, 1833867956, 5043136879, 10086273758, 20172547516]

約数ペア:

[(1, 20172547516), (2, 10086273758), (4, 5043136879), (11, 1833867956), (22, 916933978), (43, 469129012), (44, 458466989), (86, 234564506), (172, 117282253), (473, 42648092), (509, 39631724), (946, 21324046), (1018, 19815862), (1892, 10662023), (2036, 9907931), (5599, 3602884), (11198, 1801442), (20947, 963028), (21887, 921668), (22396, 900721), (41894, 481514), (43774, 460834), (83788, 240757), (87548, 230417)]