21014686

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{349}}^1$

素因数の和:409

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 22530914

約数列:

[1, 2, 7, 11, 14, 17, 22, 23, 34, 46, 77, 119, 154, 161, 187, 238, 253, 322, 349, 374, 391, 506, 698, 782, 1309, 1771, 2443, 2618, 2737, 3542, 3839, 4301, 4886, 5474, 5933, 7678, 8027, 8602, 11866, 16054, 26873, 30107, 41531, 53746, 56189, 60214, 65263, 83062, 88297, 112378, 130526, 136459, 176594, 272918, 456841, 618079, 913682, 955213, 1236158, 1501049, 1910426, 3002098, 10507343, 21014686]

約数ペア:

[(1, 21014686), (2, 10507343), (7, 3002098), (11, 1910426), (14, 1501049), (17, 1236158), (22, 955213), (23, 913682), (34, 618079), (46, 456841), (77, 272918), (119, 176594), (154, 136459), (161, 130526), (187, 112378), (238, 88297), (253, 83062), (322, 65263), (349, 60214), (374, 56189), (391, 53746), (506, 41531), (698, 30107), (782, 26873), (1309, 16054), (1771, 11866), (2443, 8602), (2618, 8027), (2737, 7678), (3542, 5933), (3839, 5474), (4301, 4886)]