21000443650081

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{2531}}^1\times {\mathrm{14957}}^1$

素因数の和:17654

約数の個数: 64

約数和(自身を含む): 26129792747520

約数和(自身を除く): 5129349097439

約数列:

[1, 7, 19, 43, 97, 133, 301, 679, 817, 1843, 2531, 4171, 5719, 12901, 14957, 17717, 29197, 48089, 79249, 104699, 108833, 245507, 284183, 336623, 554743, 643151, 761831, 1450829, 1718549, 1989281, 2067827, 4502057, 4664633, 10155803, 10556801, 12219869, 14474789, 27565751, 32652431, 37856167, 62385647, 73897607, 85539083, 192960257, 200579219, 264993169, 436699529, 719267173, 1185327293, 1404054533, 1627815181, 3672048199, 5034870211, 8297291051, 11394706267, 25704337393, 30928488439, 69768915781, 157898072557, 216499419073, 488382410467, 1105286507899, 3000063378583, 21000443650081]

約数ペア:

[(1, 21000443650081), (7, 3000063378583), (19, 1105286507899), (43, 488382410467), (97, 216499419073), (133, 157898072557), (301, 69768915781), (679, 30928488439), (817, 25704337393), (1843, 11394706267), (2531, 8297291051), (4171, 5034870211), (5719, 3672048199), (12901, 1627815181), (14957, 1404054533), (17717, 1185327293), (29197, 719267173), (48089, 436699529), (79249, 264993169), (104699, 200579219), (108833, 192960257), (245507, 85539083), (284183, 73897607), (336623, 62385647), (554743, 37856167), (643151, 32652431), (761831, 27565751), (1450829, 14474789), (1718549, 12219869), (1989281, 10556801), (2067827, 10155803), (4502057, 4664633)]