21307930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{433}}^1$

素因数の和:503

約数の個数: 64

約数和(自身を含む): 47496960

約数和(自身を除く): 26189030

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 37, 38, 70, 74, 95, 133, 185, 190, 259, 266, 370, 433, 518, 665, 703, 866, 1295, 1330, 1406, 2165, 2590, 3031, 3515, 4330, 4921, 6062, 7030, 8227, 9842, 15155, 16021, 16454, 24605, 30310, 32042, 41135, 49210, 57589, 80105, 82270, 112147, 115178, 160210, 224294, 287945, 304399, 560735, 575890, 608798, 1121470, 1521995, 2130793, 3043990, 4261586, 10653965, 21307930]

約数ペア:

[(1, 21307930), (2, 10653965), (5, 4261586), (7, 3043990), (10, 2130793), (14, 1521995), (19, 1121470), (35, 608798), (37, 575890), (38, 560735), (70, 304399), (74, 287945), (95, 224294), (133, 160210), (185, 115178), (190, 112147), (259, 82270), (266, 80105), (370, 57589), (433, 49210), (518, 41135), (665, 32042), (703, 30310), (866, 24605), (1295, 16454), (1330, 16021), (1406, 15155), (2165, 9842), (2590, 8227), (3031, 7030), (3515, 6062), (4330, 4921)]