19634391

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 34944000

約数和(自身を除く): 15309609

約数列:

[1, 3, 7, 9, 19, 21, 47, 57, 63, 133, 141, 171, 329, 349, 399, 423, 893, 987, 1047, 1197, 2443, 2679, 2961, 3141, 6251, 6631, 7329, 8037, 16403, 18753, 19893, 21987, 46417, 49209, 56259, 59679, 114821, 139251, 147627, 311657, 344463, 417753, 934971, 1033389, 2181599, 2804913, 6544797, 19634391]

約数ペア:

[(1, 19634391), (3, 6544797), (7, 2804913), (9, 2181599), (19, 1033389), (21, 934971), (47, 417753), (57, 344463), (63, 311657), (133, 147627), (141, 139251), (171, 114821), (329, 59679), (349, 56259), (399, 49209), (423, 46417), (893, 21987), (987, 19893), (1047, 18753), (1197, 16403), (2443, 8037), (2679, 7329), (2961, 6631), (3141, 6251)]