218791353

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 333704448

約数和(自身を除く): 114913095

約数列:

[1, 3, 11, 33, 43, 107, 121, 129, 131, 321, 363, 393, 473, 1177, 1419, 1441, 3531, 4323, 4601, 5203, 5633, 12947, 13803, 14017, 15609, 15851, 16899, 38841, 42051, 47553, 50611, 61963, 151833, 154187, 185889, 462561, 556721, 602731, 681593, 1670163, 1696057, 1808193, 2044779, 5088171, 6630041, 19890123, 72930451, 218791353]

約数ペア:

[(1, 218791353), (3, 72930451), (11, 19890123), (33, 6630041), (43, 5088171), (107, 2044779), (121, 1808193), (129, 1696057), (131, 1670163), (321, 681593), (363, 602731), (393, 556721), (473, 462561), (1177, 185889), (1419, 154187), (1441, 151833), (3531, 61963), (4323, 50611), (4601, 47553), (5203, 42051), (5633, 38841), (12947, 16899), (13803, 15851), (14017, 15609)]