21292380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4079}}^1$

素因数の和:4123

約数の個数: 72

約数和(自身を含む): 66830400

約数和(自身を除く): 45538020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 4079, 5220, 8158, 12237, 16316, 20395, 24474, 36711, 40790, 48948, 61185, 73422, 81580, 118291, 122370, 146844, 183555, 236582, 244740, 354873, 367110, 473164, 591455, 709746, 734220, 1064619, 1182910, 1419492, 1774365, 2129238, 2365820, 3548730, 4258476, 5323095, 7097460, 10646190, 21292380]

約数ペア:

[(1, 21292380), (2, 10646190), (3, 7097460), (4, 5323095), (5, 4258476), (6, 3548730), (9, 2365820), (10, 2129238), (12, 1774365), (15, 1419492), (18, 1182910), (20, 1064619), (29, 734220), (30, 709746), (36, 591455), (45, 473164), (58, 367110), (60, 354873), (87, 244740), (90, 236582), (116, 183555), (145, 146844), (174, 122370), (180, 118291), (261, 81580), (290, 73422), (348, 61185), (435, 48948), (522, 40790), (580, 36711), (870, 24474), (1044, 20395), (1305, 16316), (1740, 12237), (2610, 8158), (4079, 5220)]