21994210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{719}}^1$

素因数の和:775

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 27772190

約数列:

[1, 2, 5, 7, 10, 14, 19, 23, 35, 38, 46, 70, 95, 115, 133, 161, 190, 230, 266, 322, 437, 665, 719, 805, 874, 1330, 1438, 1610, 2185, 3059, 3595, 4370, 5033, 6118, 7190, 10066, 13661, 15295, 16537, 25165, 27322, 30590, 33074, 50330, 68305, 82685, 95627, 115759, 136610, 165370, 191254, 231518, 314203, 478135, 578795, 628406, 956270, 1157590, 1571015, 2199421, 3142030, 4398842, 10997105, 21994210]

約数ペア:

[(1, 21994210), (2, 10997105), (5, 4398842), (7, 3142030), (10, 2199421), (14, 1571015), (19, 1157590), (23, 956270), (35, 628406), (38, 578795), (46, 478135), (70, 314203), (95, 231518), (115, 191254), (133, 165370), (161, 136610), (190, 115759), (230, 95627), (266, 82685), (322, 68305), (437, 50330), (665, 33074), (719, 30590), (805, 27322), (874, 25165), (1330, 16537), (1438, 15295), (1610, 13661), (2185, 10066), (3059, 7190), (3595, 6118), (4370, 5033)]