21005370

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13729}}^1$

素因数の和:13759

約数の個数: 48

約数和(自身を含む): 57830760

約数和(自身を除く): 36825390

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 306, 510, 765, 1530, 13729, 27458, 41187, 68645, 82374, 123561, 137290, 205935, 233393, 247122, 411870, 466786, 617805, 700179, 1166965, 1235610, 1400358, 2100537, 2333930, 3500895, 4201074, 7001790, 10502685, 21005370]

約数ペア:

[(1, 21005370), (2, 10502685), (3, 7001790), (5, 4201074), (6, 3500895), (9, 2333930), (10, 2100537), (15, 1400358), (17, 1235610), (18, 1166965), (30, 700179), (34, 617805), (45, 466786), (51, 411870), (85, 247122), (90, 233393), (102, 205935), (153, 137290), (170, 123561), (255, 82374), (306, 68645), (510, 41187), (765, 27458), (1530, 13729)]