21712026

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{647}}^1$

素因数の和:723

約数の個数: 64

約数和(自身を含む): 53747712

約数和(自身を除く): 32035686

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 47, 51, 94, 102, 119, 141, 238, 282, 329, 357, 647, 658, 714, 799, 987, 1294, 1598, 1941, 1974, 2397, 3882, 4529, 4794, 5593, 9058, 10999, 11186, 13587, 16779, 21998, 27174, 30409, 32997, 33558, 60818, 65994, 76993, 91227, 153986, 182454, 212863, 230979, 425726, 461958, 516953, 638589, 1033906, 1277178, 1550859, 3101718, 3618671, 7237342, 10856013, 21712026]

約数ペア:

[(1, 21712026), (2, 10856013), (3, 7237342), (6, 3618671), (7, 3101718), (14, 1550859), (17, 1277178), (21, 1033906), (34, 638589), (42, 516953), (47, 461958), (51, 425726), (94, 230979), (102, 212863), (119, 182454), (141, 153986), (238, 91227), (282, 76993), (329, 65994), (357, 60818), (647, 33558), (658, 32997), (714, 30409), (799, 27174), (987, 21998), (1294, 16779), (1598, 13587), (1941, 11186), (1974, 10999), (2397, 9058), (3882, 5593), (4529, 4794)]