21950334

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{607}}^1$

素因数の和:670

約数の個数: 72

約数和(自身を含む): 56766528

約数和(自身を除く): 34816194

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 41, 42, 49, 63, 82, 98, 123, 126, 147, 246, 287, 294, 369, 441, 574, 607, 738, 861, 882, 1214, 1722, 1821, 2009, 2583, 3642, 4018, 4249, 5166, 5463, 6027, 8498, 10926, 12054, 12747, 18081, 24887, 25494, 29743, 36162, 38241, 49774, 59486, 74661, 76482, 89229, 149322, 174209, 178458, 223983, 267687, 348418, 447966, 522627, 535374, 1045254, 1219463, 1567881, 2438926, 3135762, 3658389, 7316778, 10975167, 21950334]

約数ペア:

[(1, 21950334), (2, 10975167), (3, 7316778), (6, 3658389), (7, 3135762), (9, 2438926), (14, 1567881), (18, 1219463), (21, 1045254), (41, 535374), (42, 522627), (49, 447966), (63, 348418), (82, 267687), (98, 223983), (123, 178458), (126, 174209), (147, 149322), (246, 89229), (287, 76482), (294, 74661), (369, 59486), (441, 49774), (574, 38241), (607, 36162), (738, 29743), (861, 25494), (882, 24887), (1214, 18081), (1722, 12747), (1821, 12054), (2009, 10926), (2583, 8498), (3642, 6027), (4018, 5463), (4249, 5166)]