21905156784

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{67003}}^1$

素因数の和:67167

約数の個数: 120

約数和(自身を含む): 66301798080

約数和(自身を除く): 44396641296

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 49, 56, 84, 98, 112, 139, 147, 168, 196, 278, 294, 336, 392, 417, 556, 588, 784, 834, 973, 1112, 1176, 1668, 1946, 2224, 2352, 2919, 3336, 3892, 5838, 6672, 6811, 7784, 11676, 13622, 15568, 20433, 23352, 27244, 40866, 46704, 54488, 67003, 81732, 108976, 134006, 163464, 201009, 268012, 326928, 402018, 469021, 536024, 804036, 938042, 1072048, 1407063, 1608072, 1876084, 2814126, 3216144, 3283147, 3752168, 5628252, 6566294, 7504336, 9313417, 9849441, 11256504, 13132588, 18626834, 19698882, 22513008, 26265176, 27940251, 37253668, 39397764, 52530352, 55880502, 65193919, 74507336, 78795528, 111761004, 130387838, 149014672, 157591056, 195581757, 223522008, 260775676, 391163514, 447044016, 456357433, 521551352, 782327028, 912714866, 1043102704, 1369072299, 1564654056, 1825429732, 2738144598, 3129308112, 3650859464, 5476289196, 7301718928, 10952578392, 21905156784]

約数ペア:

[(1, 21905156784), (2, 10952578392), (3, 7301718928), (4, 5476289196), (6, 3650859464), (7, 3129308112), (8, 2738144598), (12, 1825429732), (14, 1564654056), (16, 1369072299), (21, 1043102704), (24, 912714866), (28, 782327028), (42, 521551352), (48, 456357433), (49, 447044016), (56, 391163514), (84, 260775676), (98, 223522008), (112, 195581757), (139, 157591056), (147, 149014672), (168, 130387838), (196, 111761004), (278, 78795528), (294, 74507336), (336, 65193919), (392, 55880502), (417, 52530352), (556, 39397764), (588, 37253668), (784, 27940251), (834, 26265176), (973, 22513008), (1112, 19698882), (1176, 18626834), (1668, 13132588), (1946, 11256504), (2224, 9849441), (2352, 9313417), (2919, 7504336), (3336, 6566294), (3892, 5628252), (5838, 3752168), (6672, 3283147), (6811, 3216144), (7784, 2814126), (11676, 1876084), (13622, 1608072), (15568, 1407063), (20433, 1072048), (23352, 938042), (27244, 804036), (40866, 536024), (46704, 469021), (54488, 402018), (67003, 326928), (81732, 268012), (108976, 201009), (134006, 163464)]