21960551431

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{461}}^1$

素因数の和:641

約数の個数: 96

約数和(自身を含む): 30101658048

約数和(自身を除く): 8141106617

約数列:

[1, 7, 13, 17, 49, 53, 83, 91, 119, 221, 371, 461, 581, 637, 689, 833, 901, 1079, 1411, 1547, 2597, 3227, 4067, 4399, 4823, 5993, 6307, 7553, 7837, 9877, 10829, 11713, 18343, 22589, 24433, 30793, 33761, 38263, 41951, 44149, 52871, 54859, 57187, 69139, 74783, 81991, 101881, 128401, 171031, 215551, 267841, 293657, 317629, 384013, 400309, 415361, 497419, 523481, 573937, 650471, 713167, 898807, 972179, 1197217, 1874887, 2027939, 2223403, 2802163, 2907527, 3481933, 3664367, 4553297, 4992169, 5399693, 6805253, 8456123, 14195573, 15563821, 20352689, 24373531, 26363207, 31873079, 34474963, 37797851, 47636771, 59192861, 99369011, 184542449, 241324741, 264584957, 414350027, 448174519, 1291797143, 1689273187, 3137221633, 21960551431]

約数ペア:

[(1, 21960551431), (7, 3137221633), (13, 1689273187), (17, 1291797143), (49, 448174519), (53, 414350027), (83, 264584957), (91, 241324741), (119, 184542449), (221, 99369011), (371, 59192861), (461, 47636771), (581, 37797851), (637, 34474963), (689, 31873079), (833, 26363207), (901, 24373531), (1079, 20352689), (1411, 15563821), (1547, 14195573), (2597, 8456123), (3227, 6805253), (4067, 5399693), (4399, 4992169), (4823, 4553297), (5993, 3664367), (6307, 3481933), (7553, 2907527), (7837, 2802163), (9877, 2223403), (10829, 2027939), (11713, 1874887), (18343, 1197217), (22589, 972179), (24433, 898807), (30793, 713167), (33761, 650471), (38263, 573937), (41951, 523481), (44149, 497419), (52871, 415361), (54859, 400309), (57187, 384013), (69139, 317629), (74783, 293657), (81991, 267841), (101881, 215551), (128401, 171031)]