21446810

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:228

約数の個数: 96

約数和(自身を含む): 51414912

約数和(自身を除く): 29968102

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 23, 35, 46, 49, 55, 70, 77, 98, 110, 115, 154, 161, 173, 230, 245, 253, 322, 346, 385, 490, 506, 539, 770, 805, 865, 1078, 1127, 1211, 1265, 1610, 1730, 1771, 1903, 2254, 2422, 2530, 2695, 3542, 3806, 3979, 5390, 5635, 6055, 7958, 8477, 8855, 9515, 11270, 12110, 12397, 13321, 16954, 17710, 19030, 19895, 24794, 26642, 27853, 39790, 42385, 43769, 55706, 61985, 66605, 84770, 87538, 93247, 123970, 133210, 139265, 186494, 194971, 218845, 278530, 306383, 389942, 437690, 466235, 612766, 932470, 974855, 1531915, 1949710, 2144681, 3063830, 4289362, 10723405, 21446810]

約数ペア:

[(1, 21446810), (2, 10723405), (5, 4289362), (7, 3063830), (10, 2144681), (11, 1949710), (14, 1531915), (22, 974855), (23, 932470), (35, 612766), (46, 466235), (49, 437690), (55, 389942), (70, 306383), (77, 278530), (98, 218845), (110, 194971), (115, 186494), (154, 139265), (161, 133210), (173, 123970), (230, 93247), (245, 87538), (253, 84770), (322, 66605), (346, 61985), (385, 55706), (490, 43769), (506, 42385), (539, 39790), (770, 27853), (805, 26642), (865, 24794), (1078, 19895), (1127, 19030), (1211, 17710), (1265, 16954), (1610, 13321), (1730, 12397), (1771, 12110), (1903, 11270), (2254, 9515), (2422, 8855), (2530, 8477), (2695, 7958), (3542, 6055), (3806, 5635), (3979, 5390)]