2981727

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 5391360

約数和(自身を除く): 2409633

約数列:

[1, 3, 7, 9, 19, 21, 47, 53, 57, 63, 133, 141, 159, 171, 329, 371, 399, 423, 477, 893, 987, 1007, 1113, 1197, 2491, 2679, 2961, 3021, 3339, 6251, 7049, 7473, 8037, 9063, 17437, 18753, 21147, 22419, 47329, 52311, 56259, 63441, 141987, 156933, 331303, 425961, 993909, 2981727]

約数ペア:

[(1, 2981727), (3, 993909), (7, 425961), (9, 331303), (19, 156933), (21, 141987), (47, 63441), (53, 56259), (57, 52311), (63, 47329), (133, 22419), (141, 21147), (159, 18753), (171, 17437), (329, 9063), (371, 8037), (399, 7473), (423, 7049), (477, 6251), (893, 3339), (987, 3021), (1007, 2961), (1113, 2679), (1197, 2491)]