21469470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:170

約数の個数: 128

約数和(自身を含む): 61585920

約数和(自身を除く): 40116450

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 17, 22, 30, 33, 34, 43, 51, 55, 66, 85, 86, 89, 102, 110, 129, 165, 170, 178, 187, 215, 255, 258, 267, 330, 374, 430, 445, 473, 510, 534, 561, 645, 731, 890, 935, 946, 979, 1122, 1290, 1335, 1419, 1462, 1513, 1870, 1958, 2193, 2365, 2670, 2805, 2838, 2937, 3026, 3655, 3827, 4386, 4539, 4730, 4895, 5610, 5874, 7095, 7310, 7565, 7654, 8041, 9078, 9790, 10965, 11481, 14190, 14685, 15130, 16082, 16643, 19135, 21930, 22695, 22962, 24123, 29370, 33286, 38270, 40205, 42097, 45390, 48246, 49929, 57405, 65059, 80410, 83215, 84194, 99858, 114810, 120615, 126291, 130118, 166430, 195177, 210485, 241230, 249645, 252582, 325295, 390354, 420970, 499290, 631455, 650590, 715649, 975885, 1262910, 1431298, 1951770, 2146947, 3578245, 4293894, 7156490, 10734735, 21469470]

約数ペア:

[(1, 21469470), (2, 10734735), (3, 7156490), (5, 4293894), (6, 3578245), (10, 2146947), (11, 1951770), (15, 1431298), (17, 1262910), (22, 975885), (30, 715649), (33, 650590), (34, 631455), (43, 499290), (51, 420970), (55, 390354), (66, 325295), (85, 252582), (86, 249645), (89, 241230), (102, 210485), (110, 195177), (129, 166430), (165, 130118), (170, 126291), (178, 120615), (187, 114810), (215, 99858), (255, 84194), (258, 83215), (267, 80410), (330, 65059), (374, 57405), (430, 49929), (445, 48246), (473, 45390), (510, 42097), (534, 40205), (561, 38270), (645, 33286), (731, 29370), (890, 24123), (935, 22962), (946, 22695), (979, 21930), (1122, 19135), (1290, 16643), (1335, 16082), (1419, 15130), (1462, 14685), (1513, 14190), (1870, 11481), (1958, 10965), (2193, 9790), (2365, 9078), (2670, 8041), (2805, 7654), (2838, 7565), (2937, 7310), (3026, 7095), (3655, 5874), (3827, 5610), (4386, 4895), (4539, 4730)]