21091490212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{1777}}^1$

素因数の和:2061

約数の個数: 96

約数和(自身を含む): 42376140800

約数和(自身を除く): 21284650588

約数列:

[1, 2, 4, 13, 26, 31, 37, 52, 62, 74, 124, 148, 199, 398, 403, 481, 796, 806, 962, 1147, 1612, 1777, 1924, 2294, 2587, 3554, 4588, 5174, 6169, 7108, 7363, 10348, 12338, 14726, 14911, 23101, 24676, 29452, 29822, 46202, 55087, 59644, 65749, 80197, 92404, 95719, 110174, 131498, 160394, 191438, 220348, 228253, 262996, 320788, 353623, 382876, 456506, 707246, 716131, 854737, 913012, 1414492, 1432262, 1709474, 2038219, 2864524, 2967289, 3418948, 4076438, 4597099, 5934578, 8152876, 9194198, 10962313, 11869156, 13084051, 18388396, 21924626, 26168102, 26496847, 43849252, 52336204, 52993694, 105987388, 142510069, 170092663, 285020138, 340185326, 405605581, 570040276, 680370652, 811211162, 1622422324, 5272872553, 10545745106, 21091490212]

約数ペア:

[(1, 21091490212), (2, 10545745106), (4, 5272872553), (13, 1622422324), (26, 811211162), (31, 680370652), (37, 570040276), (52, 405605581), (62, 340185326), (74, 285020138), (124, 170092663), (148, 142510069), (199, 105987388), (398, 52993694), (403, 52336204), (481, 43849252), (796, 26496847), (806, 26168102), (962, 21924626), (1147, 18388396), (1612, 13084051), (1777, 11869156), (1924, 10962313), (2294, 9194198), (2587, 8152876), (3554, 5934578), (4588, 4597099), (5174, 4076438), (6169, 3418948), (7108, 2967289), (7363, 2864524), (10348, 2038219), (12338, 1709474), (14726, 1432262), (14911, 1414492), (23101, 913012), (24676, 854737), (29452, 716131), (29822, 707246), (46202, 456506), (55087, 382876), (59644, 353623), (65749, 320788), (80197, 262996), (92404, 228253), (95719, 220348), (110174, 191438), (131498, 160394)]