19949013

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 34819200

約数和(自身を除く): 14870187

約数列:

[1, 3, 7, 9, 21, 29, 61, 63, 87, 179, 183, 203, 261, 427, 537, 549, 609, 1253, 1281, 1611, 1769, 1827, 3759, 3843, 5191, 5307, 10919, 11277, 12383, 15573, 15921, 32757, 36337, 37149, 46719, 76433, 98271, 109011, 111447, 229299, 316651, 327033, 687897, 949953, 2216557, 2849859, 6649671, 19949013]

約数ペア:

[(1, 19949013), (3, 6649671), (7, 2849859), (9, 2216557), (21, 949953), (29, 687897), (61, 327033), (63, 316651), (87, 229299), (179, 111447), (183, 109011), (203, 98271), (261, 76433), (427, 46719), (537, 37149), (549, 36337), (609, 32757), (1253, 15921), (1281, 15573), (1611, 12383), (1769, 11277), (1827, 10919), (3759, 5307), (3843, 5191)]