20511918

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{941}}^1$

素因数の和:1129

約数の個数: 48

約数和(自身を含む): 51139296

約数和(自身を除く): 30627378

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 173, 346, 519, 941, 1038, 1211, 1557, 1882, 2422, 2823, 3114, 3633, 5646, 6587, 7266, 8469, 10899, 13174, 16938, 19761, 21798, 39522, 59283, 118566, 162793, 325586, 488379, 976758, 1139551, 1465137, 2279102, 2930274, 3418653, 6837306, 10255959, 20511918]

約数ペア:

[(1, 20511918), (2, 10255959), (3, 6837306), (6, 3418653), (7, 2930274), (9, 2279102), (14, 1465137), (18, 1139551), (21, 976758), (42, 488379), (63, 325586), (126, 162793), (173, 118566), (346, 59283), (519, 39522), (941, 21798), (1038, 19761), (1211, 16938), (1557, 13174), (1882, 10899), (2422, 8469), (2823, 7266), (3114, 6587), (3633, 5646)]