331384263

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:548

約数の個数: 64

約数和(自身を含む): 557383680

約数和(自身を除く): 225999417

約数列:

[1, 3, 7, 19, 21, 41, 47, 57, 123, 133, 141, 287, 329, 399, 431, 779, 861, 893, 987, 1293, 1927, 2337, 2679, 3017, 5453, 5781, 6251, 8189, 9051, 13489, 16359, 17671, 18753, 20257, 24567, 36613, 40467, 53013, 57323, 60771, 109839, 123697, 141799, 171969, 256291, 335749, 371091, 384883, 425397, 768873, 830537, 1007247, 1154649, 2350243, 2491611, 2694181, 5813759, 7050729, 8082543, 15780203, 17441277, 47340609, 110461421, 331384263]

約数ペア:

[(1, 331384263), (3, 110461421), (7, 47340609), (19, 17441277), (21, 15780203), (41, 8082543), (47, 7050729), (57, 5813759), (123, 2694181), (133, 2491611), (141, 2350243), (287, 1154649), (329, 1007247), (399, 830537), (431, 768873), (779, 425397), (861, 384883), (893, 371091), (987, 335749), (1293, 256291), (1927, 171969), (2337, 141799), (2679, 123697), (3017, 109839), (5453, 60771), (5781, 57323), (6251, 53013), (8189, 40467), (9051, 36613), (13489, 24567), (16359, 20257), (17671, 18753)]