21688282

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:128

約数の個数: 72

約数和(自身を含む): 43666560

約数和(自身を除く): 21978278

約数列:

[1, 2, 7, 11, 14, 22, 31, 49, 59, 62, 77, 98, 118, 121, 154, 217, 242, 341, 413, 434, 539, 649, 682, 826, 847, 1078, 1298, 1519, 1694, 1829, 2387, 2891, 3038, 3658, 3751, 4543, 4774, 5782, 5929, 7139, 7502, 9086, 11858, 12803, 14278, 16709, 20119, 25606, 26257, 31801, 33418, 40238, 49973, 52514, 63602, 89621, 99946, 140833, 179242, 183799, 221309, 281666, 349811, 367598, 442618, 699622, 985831, 1549163, 1971662, 3098326, 10844141, 21688282]

約数ペア:

[(1, 21688282), (2, 10844141), (7, 3098326), (11, 1971662), (14, 1549163), (22, 985831), (31, 699622), (49, 442618), (59, 367598), (62, 349811), (77, 281666), (98, 221309), (118, 183799), (121, 179242), (154, 140833), (217, 99946), (242, 89621), (341, 63602), (413, 52514), (434, 49973), (539, 40238), (649, 33418), (682, 31801), (826, 26257), (847, 25606), (1078, 20119), (1298, 16709), (1519, 14278), (1694, 12803), (1829, 11858), (2387, 9086), (2891, 7502), (3038, 7139), (3658, 5929), (3751, 5782), (4543, 4774)]