21130116885

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{3529}}^1$

素因数の和:3755

約数の個数: 96

約数和(自身を含む): 39648960000

約数和(自身を除く): 18518843115

約数列:

[1, 3, 5, 9, 15, 19, 45, 47, 57, 95, 141, 149, 171, 235, 285, 423, 447, 705, 745, 855, 893, 1341, 2115, 2235, 2679, 2831, 3529, 4465, 6705, 7003, 8037, 8493, 10587, 13395, 14155, 17645, 21009, 25479, 31761, 35015, 40185, 42465, 52935, 63027, 67051, 105045, 127395, 133057, 158805, 165863, 201153, 315135, 335255, 399171, 497589, 525821, 603459, 665285, 829315, 1005765, 1197513, 1492767, 1577463, 1995855, 2487945, 2629105, 3017295, 3151397, 4732389, 5987565, 7463835, 7887315, 9454191, 9990599, 15756985, 23661945, 24713587, 28362573, 29971797, 47270955, 49952995, 74140761, 89915391, 123567935, 141812865, 149858985, 222422283, 370703805, 449576955, 469558153, 1112111415, 1408674459, 2347790765, 4226023377, 7043372295, 21130116885]

約数ペア:

[(1, 21130116885), (3, 7043372295), (5, 4226023377), (9, 2347790765), (15, 1408674459), (19, 1112111415), (45, 469558153), (47, 449576955), (57, 370703805), (95, 222422283), (141, 149858985), (149, 141812865), (171, 123567935), (235, 89915391), (285, 74140761), (423, 49952995), (447, 47270955), (705, 29971797), (745, 28362573), (855, 24713587), (893, 23661945), (1341, 15756985), (2115, 9990599), (2235, 9454191), (2679, 7887315), (2831, 7463835), (3529, 5987565), (4465, 4732389), (6705, 3151397), (7003, 3017295), (8037, 2629105), (8493, 2487945), (10587, 1995855), (13395, 1577463), (14155, 1492767), (17645, 1197513), (21009, 1005765), (25479, 829315), (31761, 665285), (35015, 603459), (40185, 525821), (42465, 497589), (52935, 399171), (63027, 335255), (67051, 315135), (105045, 201153), (127395, 165863), (133057, 158805)]