21286330920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{213461}}^1$

素因数の和:213755

約数の個数: 96

約数和(自身を含む): 69430650120

約数和(自身を除く): 48144319200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 277, 360, 554, 831, 1108, 1385, 1662, 2216, 2493, 2770, 3324, 4155, 4986, 5540, 6648, 8310, 9972, 11080, 12465, 16620, 19944, 24930, 33240, 49860, 99720, 213461, 426922, 640383, 853844, 1067305, 1280766, 1707688, 1921149, 2134610, 2561532, 3201915, 3842298, 4269220, 5123064, 6403830, 7684596, 8538440, 9605745, 12807660, 15369192, 19211490, 25615320, 38422980, 59128697, 76845960, 118257394, 177386091, 236514788, 295643485, 354772182, 473029576, 532158273, 591286970, 709544364, 886930455, 1064316546, 1182573940, 1419088728, 1773860910, 2128633092, 2365147880, 2660791365, 3547721820, 4257266184, 5321582730, 7095443640, 10643165460, 21286330920]

約数ペア:

[(1, 21286330920), (2, 10643165460), (3, 7095443640), (4, 5321582730), (5, 4257266184), (6, 3547721820), (8, 2660791365), (9, 2365147880), (10, 2128633092), (12, 1773860910), (15, 1419088728), (18, 1182573940), (20, 1064316546), (24, 886930455), (30, 709544364), (36, 591286970), (40, 532158273), (45, 473029576), (60, 354772182), (72, 295643485), (90, 236514788), (120, 177386091), (180, 118257394), (277, 76845960), (360, 59128697), (554, 38422980), (831, 25615320), (1108, 19211490), (1385, 15369192), (1662, 12807660), (2216, 9605745), (2493, 8538440), (2770, 7684596), (3324, 6403830), (4155, 5123064), (4986, 4269220), (5540, 3842298), (6648, 3201915), (8310, 2561532), (9972, 2134610), (11080, 1921149), (12465, 1707688), (16620, 1280766), (19944, 1067305), (24930, 853844), (33240, 640383), (49860, 426922), (99720, 213461)]