21275478

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8887}}^1$

素因数の和:8921

約数の個数: 48

約数和(自身を含む): 55461120

約数和(自身を除く): 34185642

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 114, 126, 133, 171, 266, 342, 399, 798, 1197, 2394, 8887, 17774, 26661, 53322, 62209, 79983, 124418, 159966, 168853, 186627, 337706, 373254, 506559, 559881, 1013118, 1119762, 1181971, 1519677, 2363942, 3039354, 3545913, 7091826, 10637739, 21275478]

約数ペア:

[(1, 21275478), (2, 10637739), (3, 7091826), (6, 3545913), (7, 3039354), (9, 2363942), (14, 1519677), (18, 1181971), (19, 1119762), (21, 1013118), (38, 559881), (42, 506559), (57, 373254), (63, 337706), (114, 186627), (126, 168853), (133, 159966), (171, 124418), (266, 79983), (342, 62209), (399, 53322), (798, 26661), (1197, 17774), (2394, 8887)]