206219997

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{1783}}^1$

素因数の和:2041

約数の個数: 24

約数和(自身を含む): 303907968

約数和(自身を除く): 97687971

約数列:

[1, 3, 9, 71, 181, 213, 543, 639, 1629, 1783, 5349, 12851, 16047, 38553, 115659, 126593, 322723, 379779, 968169, 1139337, 2904507, 22913333, 68739999, 206219997]

約数ペア:

[(1, 206219997), (3, 68739999), (9, 22913333), (71, 2904507), (181, 1139337), (213, 968169), (543, 379779), (639, 322723), (1629, 126593), (1783, 115659), (5349, 38553), (12851, 16047)]