21000434754

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{613}}^1\times {\mathrm{8287}}^1$

素因数の和:8971

約数の個数: 64

約数和(自身を含む): 46165883904

約数和(自身を除く): 25165449150

約数列:

[1, 2, 3, 6, 13, 26, 39, 53, 78, 106, 159, 318, 613, 689, 1226, 1378, 1839, 2067, 3678, 4134, 7969, 8287, 15938, 16574, 23907, 24861, 32489, 47814, 49722, 64978, 97467, 107731, 194934, 215462, 323193, 422357, 439211, 646386, 844714, 878422, 1267071, 1317633, 2534142, 2635266, 5079931, 5709743, 10159862, 11419486, 15239793, 17129229, 30479586, 34258458, 66039103, 132078206, 198117309, 269236343, 396234618, 538472686, 807709029, 1615418058, 3500072459, 7000144918, 10500217377, 21000434754]

約数ペア:

[(1, 21000434754), (2, 10500217377), (3, 7000144918), (6, 3500072459), (13, 1615418058), (26, 807709029), (39, 538472686), (53, 396234618), (78, 269236343), (106, 198117309), (159, 132078206), (318, 66039103), (613, 34258458), (689, 30479586), (1226, 17129229), (1378, 15239793), (1839, 11419486), (2067, 10159862), (3678, 5709743), (4134, 5079931), (7969, 2635266), (8287, 2534142), (15938, 1317633), (16574, 1267071), (23907, 878422), (24861, 844714), (32489, 646386), (47814, 439211), (49722, 422357), (64978, 323193), (97467, 215462), (107731, 194934)]