21709286

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{421}}^1$

素因数の和:524

約数の個数: 32

約数和(自身を含む): 36460800

約数和(自身を除く): 14751514

約数列:

[1, 2, 19, 23, 38, 46, 59, 118, 421, 437, 842, 874, 1121, 1357, 2242, 2714, 7999, 9683, 15998, 19366, 24839, 25783, 49678, 51566, 183977, 367954, 471941, 571297, 943882, 1142594, 10854643, 21709286]

約数ペア:

[(1, 21709286), (2, 10854643), (19, 1142594), (23, 943882), (38, 571297), (46, 471941), (59, 367954), (118, 183977), (421, 51566), (437, 49678), (842, 25783), (874, 24839), (1121, 19366), (1357, 15998), (2242, 9683), (2714, 7999)]