20512247259

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{253247}}^1$

素因数の和:253312

約数の個数: 48

約数和(自身を含む): 34644326400

約数和(自身を除く): 14132079141

約数列:

[1, 3, 7, 19, 21, 29, 49, 57, 87, 133, 147, 203, 399, 551, 609, 931, 1421, 1653, 2793, 3857, 4263, 11571, 26999, 80997, 253247, 759741, 1772729, 4811693, 5318187, 7344163, 12409103, 14435079, 22032489, 33681851, 37227309, 51409141, 101045553, 139539097, 154227423, 235772957, 359863987, 418617291, 707318871, 976773679, 1079591961, 2930321037, 6837415753, 20512247259]

約数ペア:

[(1, 20512247259), (3, 6837415753), (7, 2930321037), (19, 1079591961), (21, 976773679), (29, 707318871), (49, 418617291), (57, 359863987), (87, 235772957), (133, 154227423), (147, 139539097), (203, 101045553), (399, 51409141), (551, 37227309), (609, 33681851), (931, 22032489), (1421, 14435079), (1653, 12409103), (2793, 7344163), (3857, 5318187), (4263, 4811693), (11571, 1772729), (26999, 759741), (80997, 253247)]