20210841

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{167}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 35852544

約数和(自身を除く): 15641703

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 113, 119, 153, 167, 339, 357, 501, 791, 1017, 1071, 1169, 1503, 1921, 2373, 2839, 3507, 5763, 7119, 8517, 10521, 13447, 17289, 18871, 19873, 25551, 40341, 56613, 59619, 121023, 132097, 169839, 178857, 320807, 396291, 962421, 1188873, 2245649, 2887263, 6736947, 20210841]

約数ペア:

[(1, 20210841), (3, 6736947), (7, 2887263), (9, 2245649), (17, 1188873), (21, 962421), (51, 396291), (63, 320807), (113, 178857), (119, 169839), (153, 132097), (167, 121023), (339, 59619), (357, 56613), (501, 40341), (791, 25551), (1017, 19873), (1071, 18871), (1169, 17289), (1503, 13447), (1921, 10521), (2373, 8517), (2839, 7119), (3507, 5763)]