20783138908

素因数分解:

$2^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{1093159}}^1$

素因数の和:1093274

約数の個数: 36

約数和(自身を含む): 42744742320

約数和(自身を除く): 21961603412

約数列:

[1, 2, 4, 7, 14, 28, 49, 97, 98, 194, 196, 388, 679, 1358, 2716, 4753, 9506, 19012, 1093159, 2186318, 4372636, 7652113, 15304226, 30608452, 53564791, 106036423, 107129582, 212072846, 214259164, 424145692, 742254961, 1484509922, 2969019844, 5195784727, 10391569454, 20783138908]

約数ペア:

[(1, 20783138908), (2, 10391569454), (4, 5195784727), (7, 2969019844), (14, 1484509922), (28, 742254961), (49, 424145692), (97, 214259164), (98, 212072846), (194, 107129582), (196, 106036423), (388, 53564791), (679, 30608452), (1358, 15304226), (2716, 7652113), (4753, 4372636), (9506, 2186318), (19012, 1093159)]