19893390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2621}}^1$

素因数の和:2665

約数の個数: 64

約数和(自身を含む): 54369792

約数和(自身を除く): 34476402

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 23, 30, 33, 46, 55, 66, 69, 110, 115, 138, 165, 230, 253, 330, 345, 506, 690, 759, 1265, 1518, 2530, 2621, 3795, 5242, 7590, 7863, 13105, 15726, 26210, 28831, 39315, 57662, 60283, 78630, 86493, 120566, 144155, 172986, 180849, 288310, 301415, 361698, 432465, 602830, 663113, 864930, 904245, 1326226, 1808490, 1989339, 3315565, 3978678, 6631130, 9946695, 19893390]

約数ペア:

[(1, 19893390), (2, 9946695), (3, 6631130), (5, 3978678), (6, 3315565), (10, 1989339), (11, 1808490), (15, 1326226), (22, 904245), (23, 864930), (30, 663113), (33, 602830), (46, 432465), (55, 361698), (66, 301415), (69, 288310), (110, 180849), (115, 172986), (138, 144155), (165, 120566), (230, 86493), (253, 78630), (330, 60283), (345, 57662), (506, 39315), (690, 28831), (759, 26210), (1265, 15726), (1518, 13105), (2530, 7863), (2621, 7590), (3795, 5242)]