21968460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{127}}^1$

素因数の和:204

約数の個数: 108

約数和(自身を含む): 69398784

約数和(自身を除く): 47430324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 127, 155, 180, 186, 254, 279, 310, 372, 381, 465, 508, 558, 620, 635, 762, 930, 961, 1116, 1143, 1270, 1395, 1524, 1860, 1905, 1922, 2286, 2540, 2790, 2883, 3810, 3844, 3937, 4572, 4805, 5580, 5715, 5766, 7620, 7874, 8649, 9610, 11430, 11532, 11811, 14415, 15748, 17298, 19220, 19685, 22860, 23622, 28830, 34596, 35433, 39370, 43245, 47244, 57660, 59055, 70866, 78740, 86490, 118110, 122047, 141732, 172980, 177165, 236220, 244094, 354330, 366141, 488188, 610235, 708660, 732282, 1098423, 1220470, 1464564, 1830705, 2196846, 2440940, 3661410, 4393692, 5492115, 7322820, 10984230, 21968460]

約数ペア:

[(1, 21968460), (2, 10984230), (3, 7322820), (4, 5492115), (5, 4393692), (6, 3661410), (9, 2440940), (10, 2196846), (12, 1830705), (15, 1464564), (18, 1220470), (20, 1098423), (30, 732282), (31, 708660), (36, 610235), (45, 488188), (60, 366141), (62, 354330), (90, 244094), (93, 236220), (124, 177165), (127, 172980), (155, 141732), (180, 122047), (186, 118110), (254, 86490), (279, 78740), (310, 70866), (372, 59055), (381, 57660), (465, 47244), (508, 43245), (558, 39370), (620, 35433), (635, 34596), (762, 28830), (930, 23622), (961, 22860), (1116, 19685), (1143, 19220), (1270, 17298), (1395, 15748), (1524, 14415), (1860, 11811), (1905, 11532), (1922, 11430), (2286, 9610), (2540, 8649), (2790, 7874), (2883, 7620), (3810, 5766), (3844, 5715), (3937, 5580), (4572, 4805)]