21683826

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:164

約数の個数: 72

約数和(自身を含む): 51352704

約数和(自身を除く): 29668878

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 47, 57, 71, 94, 114, 141, 142, 171, 213, 282, 342, 361, 423, 426, 639, 722, 846, 893, 1083, 1278, 1349, 1786, 2166, 2679, 2698, 3249, 3337, 4047, 5358, 6498, 6674, 8037, 8094, 10011, 12141, 16074, 16967, 20022, 24282, 25631, 30033, 33934, 50901, 51262, 60066, 63403, 76893, 101802, 126806, 152703, 153786, 190209, 230679, 305406, 380418, 461358, 570627, 1141254, 1204657, 2409314, 3613971, 7227942, 10841913, 21683826]

約数ペア:

[(1, 21683826), (2, 10841913), (3, 7227942), (6, 3613971), (9, 2409314), (18, 1204657), (19, 1141254), (38, 570627), (47, 461358), (57, 380418), (71, 305406), (94, 230679), (114, 190209), (141, 153786), (142, 152703), (171, 126806), (213, 101802), (282, 76893), (342, 63403), (361, 60066), (423, 51262), (426, 50901), (639, 33934), (722, 30033), (846, 25631), (893, 24282), (1083, 20022), (1278, 16967), (1349, 16074), (1786, 12141), (2166, 10011), (2679, 8094), (2698, 8037), (3249, 6674), (3337, 6498), (4047, 5358)]