18121291211

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 20910489600

約数和(自身を除く): 2789198389

約数列:

[1, 19, 31, 43, 59, 67, 181, 589, 817, 1121, 1273, 1333, 1829, 2077, 2537, 2881, 3439, 3953, 5611, 7783, 10679, 12127, 25327, 34751, 39463, 48203, 54739, 75107, 78647, 89311, 106609, 122543, 147877, 169979, 202901, 230413, 241273, 331049, 375937, 459197, 521461, 715493, 1494293, 1696909, 2328317, 3229601, 4584187, 5269349, 6289931, 7142803, 8724743, 9907759, 13594367, 14235107, 16165291, 22180283, 30766199, 100117631, 270467033, 307140529, 421425377, 584557781, 953752169, 18121291211]

約数ペア:

[(1, 18121291211), (19, 953752169), (31, 584557781), (43, 421425377), (59, 307140529), (67, 270467033), (181, 100117631), (589, 30766199), (817, 22180283), (1121, 16165291), (1273, 14235107), (1333, 13594367), (1829, 9907759), (2077, 8724743), (2537, 7142803), (2881, 6289931), (3439, 5269349), (3953, 4584187), (5611, 3229601), (7783, 2328317), (10679, 1696909), (12127, 1494293), (25327, 715493), (34751, 521461), (39463, 459197), (48203, 375937), (54739, 331049), (75107, 241273), (78647, 230413), (89311, 202901), (106609, 169979), (122543, 147877)]