21193935420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{99139}}^1$

素因数の和:99667

約数の個数: 96

約数和(自身を含む): 67954521600

約数和(自身を除く): 46760586180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 509, 1018, 1527, 2036, 2545, 3054, 3563, 5090, 6108, 7126, 7635, 10180, 10689, 14252, 15270, 17815, 21378, 30540, 35630, 42756, 53445, 71260, 99139, 106890, 198278, 213780, 297417, 396556, 495695, 594834, 693973, 991390, 1189668, 1387946, 1487085, 1982780, 2081919, 2775892, 2974170, 3469865, 4163838, 5948340, 6939730, 8327676, 10409595, 13879460, 20819190, 41638380, 50461751, 100923502, 151385253, 201847004, 252308755, 302770506, 353232257, 504617510, 605541012, 706464514, 756926265, 1009235020, 1059696771, 1412929028, 1513852530, 1766161285, 2119393542, 3027705060, 3532322570, 4238787084, 5298483855, 7064645140, 10596967710, 21193935420]

約数ペア:

[(1, 21193935420), (2, 10596967710), (3, 7064645140), (4, 5298483855), (5, 4238787084), (6, 3532322570), (7, 3027705060), (10, 2119393542), (12, 1766161285), (14, 1513852530), (15, 1412929028), (20, 1059696771), (21, 1009235020), (28, 756926265), (30, 706464514), (35, 605541012), (42, 504617510), (60, 353232257), (70, 302770506), (84, 252308755), (105, 201847004), (140, 151385253), (210, 100923502), (420, 50461751), (509, 41638380), (1018, 20819190), (1527, 13879460), (2036, 10409595), (2545, 8327676), (3054, 6939730), (3563, 5948340), (5090, 4163838), (6108, 3469865), (7126, 2974170), (7635, 2775892), (10180, 2081919), (10689, 1982780), (14252, 1487085), (15270, 1387946), (17815, 1189668), (21378, 991390), (30540, 693973), (35630, 594834), (42756, 495695), (53445, 396556), (71260, 297417), (99139, 213780), (106890, 198278)]