21050822

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{991}}^1$

素因数の和:1068

約数の個数: 32

約数和(自身を含む): 36664320

約数和(自身を除く): 15613498

約数列:

[1, 2, 13, 19, 26, 38, 43, 86, 247, 494, 559, 817, 991, 1118, 1634, 1982, 10621, 12883, 18829, 21242, 25766, 37658, 42613, 85226, 244777, 489554, 553969, 809647, 1107938, 1619294, 10525411, 21050822]

約数ペア:

[(1, 21050822), (2, 10525411), (13, 1619294), (19, 1107938), (26, 809647), (38, 553969), (43, 489554), (86, 244777), (247, 85226), (494, 42613), (559, 37658), (817, 25766), (991, 21242), (1118, 18829), (1634, 12883), (1982, 10621)]