21167243235

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{747827}}^1$

素因数の和:747892

約数の個数: 48

約数和(自身を含む): 39898119456

約数和(自身を除く): 18730876221

約数列:

[1, 3, 5, 9, 15, 17, 37, 45, 51, 85, 111, 153, 185, 255, 333, 555, 629, 765, 1665, 1887, 3145, 5661, 9435, 28305, 747827, 2243481, 3739135, 6730443, 11217405, 12713059, 27669599, 33652215, 38139177, 63565295, 83008797, 114417531, 138347995, 190695885, 249026391, 415043985, 470383183, 572087655, 1245131955, 1411149549, 2351915915, 4233448647, 7055747745, 21167243235]

約数ペア:

[(1, 21167243235), (3, 7055747745), (5, 4233448647), (9, 2351915915), (15, 1411149549), (17, 1245131955), (37, 572087655), (45, 470383183), (51, 415043985), (85, 249026391), (111, 190695885), (153, 138347995), (185, 114417531), (255, 83008797), (333, 63565295), (555, 38139177), (629, 33652215), (765, 27669599), (1665, 12713059), (1887, 11217405), (3145, 6730443), (5661, 3739135), (9435, 2243481), (28305, 747827)]