20802276

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{401}}^1$

素因数の和:553

約数の個数: 72

約数和(自身を含む): 57945888

約数和(自身を除く): 37143612

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 131, 132, 198, 262, 393, 396, 401, 524, 786, 802, 1179, 1203, 1441, 1572, 1604, 2358, 2406, 2882, 3609, 4323, 4411, 4716, 4812, 5764, 7218, 8646, 8822, 12969, 13233, 14436, 17292, 17644, 25938, 26466, 39699, 51876, 52531, 52932, 79398, 105062, 157593, 158796, 210124, 315186, 472779, 577841, 630372, 945558, 1155682, 1733523, 1891116, 2311364, 3467046, 5200569, 6934092, 10401138, 20802276]

約数ペア:

[(1, 20802276), (2, 10401138), (3, 6934092), (4, 5200569), (6, 3467046), (9, 2311364), (11, 1891116), (12, 1733523), (18, 1155682), (22, 945558), (33, 630372), (36, 577841), (44, 472779), (66, 315186), (99, 210124), (131, 158796), (132, 157593), (198, 105062), (262, 79398), (393, 52932), (396, 52531), (401, 51876), (524, 39699), (786, 26466), (802, 25938), (1179, 17644), (1203, 17292), (1441, 14436), (1572, 13233), (1604, 12969), (2358, 8822), (2406, 8646), (2882, 7218), (3609, 5764), (4323, 4812), (4411, 4716)]