21812912

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{593}}^1$

素因数の和:642

約数の個数: 60

約数和(自身を含む): 48981240

約数和(自身を除く): 27168328

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 121, 152, 176, 209, 242, 304, 418, 484, 593, 836, 968, 1186, 1672, 1936, 2299, 2372, 3344, 4598, 4744, 6523, 9196, 9488, 11267, 13046, 18392, 22534, 26092, 36784, 45068, 52184, 71753, 90136, 104368, 123937, 143506, 180272, 247874, 287012, 495748, 574024, 991496, 1148048, 1363307, 1982992, 2726614, 5453228, 10906456, 21812912]

約数ペア:

[(1, 21812912), (2, 10906456), (4, 5453228), (8, 2726614), (11, 1982992), (16, 1363307), (19, 1148048), (22, 991496), (38, 574024), (44, 495748), (76, 287012), (88, 247874), (121, 180272), (152, 143506), (176, 123937), (209, 104368), (242, 90136), (304, 71753), (418, 52184), (484, 45068), (593, 36784), (836, 26092), (968, 22534), (1186, 18392), (1672, 13046), (1936, 11267), (2299, 9488), (2372, 9196), (3344, 6523), (4598, 4744)]