20198738

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:602

約数の個数: 32

約数和(自身を含む): 36460800

約数和(自身を除く): 16262062

約数列:

[1, 2, 7, 14, 23, 46, 149, 161, 298, 322, 421, 842, 1043, 2086, 2947, 3427, 5894, 6854, 9683, 19366, 23989, 47978, 62729, 67781, 125458, 135562, 439103, 878206, 1442767, 2885534, 10099369, 20198738]

約数ペア:

[(1, 20198738), (2, 10099369), (7, 2885534), (14, 1442767), (23, 878206), (46, 439103), (149, 135562), (161, 125458), (298, 67781), (322, 62729), (421, 47978), (842, 23989), (1043, 19366), (2086, 9683), (2947, 6854), (3427, 5894)]