21448492

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1277}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 45087840

約数和(自身を除く): 23639348

約数列:

[1, 2, 4, 13, 17, 19, 26, 34, 38, 52, 68, 76, 221, 247, 323, 442, 494, 646, 884, 988, 1277, 1292, 2554, 4199, 5108, 8398, 16601, 16796, 21709, 24263, 33202, 43418, 48526, 66404, 86836, 97052, 282217, 315419, 412471, 564434, 630838, 824942, 1128868, 1261676, 1649884, 5362123, 10724246, 21448492]

約数ペア:

[(1, 21448492), (2, 10724246), (4, 5362123), (13, 1649884), (17, 1261676), (19, 1128868), (26, 824942), (34, 630838), (38, 564434), (52, 412471), (68, 315419), (76, 282217), (221, 97052), (247, 86836), (323, 66404), (442, 48526), (494, 43418), (646, 33202), (884, 24263), (988, 21709), (1277, 16796), (1292, 16601), (2554, 8398), (4199, 5108)]