19696995

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 35642880

約数和(自身を除く): 15945885

約数列:

[1, 3, 5, 9, 15, 45, 47, 67, 139, 141, 201, 235, 335, 417, 423, 603, 695, 705, 1005, 1251, 2085, 2115, 3015, 3149, 6255, 6533, 9313, 9447, 15745, 19599, 27939, 28341, 32665, 46565, 47235, 58797, 83817, 97995, 139695, 141705, 293985, 419085, 437711, 1313133, 2188555, 3939399, 6565665, 19696995]

約数ペア:

[(1, 19696995), (3, 6565665), (5, 3939399), (9, 2188555), (15, 1313133), (45, 437711), (47, 419085), (67, 293985), (139, 141705), (141, 139695), (201, 97995), (235, 83817), (335, 58797), (417, 47235), (423, 46565), (603, 32665), (695, 28341), (705, 27939), (1005, 19599), (1251, 15745), (2085, 9447), (2115, 9313), (3015, 6533), (3149, 6255)]