21205170

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{347}}^1$

素因数の和:464

約数の個数: 96

約数和(自身を含む): 63842688

約数和(自身を除く): 42637518

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 97, 105, 126, 194, 210, 291, 315, 347, 485, 582, 630, 679, 694, 873, 970, 1041, 1358, 1455, 1735, 1746, 2037, 2082, 2429, 2910, 3123, 3395, 3470, 4074, 4365, 4858, 5205, 6111, 6246, 6790, 7287, 8730, 10185, 10410, 12145, 12222, 14574, 15615, 20370, 21861, 24290, 30555, 31230, 33659, 36435, 43722, 61110, 67318, 72870, 100977, 109305, 168295, 201954, 218610, 235613, 302931, 336590, 471226, 504885, 605862, 706839, 1009770, 1178065, 1413678, 1514655, 2120517, 2356130, 3029310, 3534195, 4241034, 7068390, 10602585, 21205170]

約数ペア:

[(1, 21205170), (2, 10602585), (3, 7068390), (5, 4241034), (6, 3534195), (7, 3029310), (9, 2356130), (10, 2120517), (14, 1514655), (15, 1413678), (18, 1178065), (21, 1009770), (30, 706839), (35, 605862), (42, 504885), (45, 471226), (63, 336590), (70, 302931), (90, 235613), (97, 218610), (105, 201954), (126, 168295), (194, 109305), (210, 100977), (291, 72870), (315, 67318), (347, 61110), (485, 43722), (582, 36435), (630, 33659), (679, 31230), (694, 30555), (873, 24290), (970, 21861), (1041, 20370), (1358, 15615), (1455, 14574), (1735, 12222), (1746, 12145), (2037, 10410), (2082, 10185), (2429, 8730), (2910, 7287), (3123, 6790), (3395, 6246), (3470, 6111), (4074, 5205), (4365, 4858)]