21465540

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{313}}^1$

素因数の和:458

約数の個数: 96

約数和(自身を含む): 67522560

約数和(自身を除く): 46057020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 127, 135, 180, 254, 270, 313, 381, 508, 540, 626, 635, 762, 939, 1143, 1252, 1270, 1524, 1565, 1878, 1905, 2286, 2540, 2817, 3130, 3429, 3756, 3810, 4572, 4695, 5634, 5715, 6260, 6858, 7620, 8451, 9390, 11268, 11430, 13716, 14085, 16902, 17145, 18780, 22860, 28170, 33804, 34290, 39751, 42255, 56340, 68580, 79502, 84510, 119253, 159004, 169020, 198755, 238506, 357759, 397510, 477012, 596265, 715518, 795020, 1073277, 1192530, 1431036, 1788795, 2146554, 2385060, 3577590, 4293108, 5366385, 7155180, 10732770, 21465540]

約数ペア:

[(1, 21465540), (2, 10732770), (3, 7155180), (4, 5366385), (5, 4293108), (6, 3577590), (9, 2385060), (10, 2146554), (12, 1788795), (15, 1431036), (18, 1192530), (20, 1073277), (27, 795020), (30, 715518), (36, 596265), (45, 477012), (54, 397510), (60, 357759), (90, 238506), (108, 198755), (127, 169020), (135, 159004), (180, 119253), (254, 84510), (270, 79502), (313, 68580), (381, 56340), (508, 42255), (540, 39751), (626, 34290), (635, 33804), (762, 28170), (939, 22860), (1143, 18780), (1252, 17145), (1270, 16902), (1524, 14085), (1565, 13716), (1878, 11430), (1905, 11268), (2286, 9390), (2540, 8451), (2817, 7620), (3130, 6858), (3429, 6260), (3756, 5715), (3810, 5634), (4572, 4695)]