21653350

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{991}}^1$

素因数の和:1045

約数の個数: 48

約数和(自身を含む): 44282880

約数和(自身を除く): 22629530

約数列:

[1, 2, 5, 10, 19, 23, 25, 38, 46, 50, 95, 115, 190, 230, 437, 475, 575, 874, 950, 991, 1150, 1982, 2185, 4370, 4955, 9910, 10925, 18829, 21850, 22793, 24775, 37658, 45586, 49550, 94145, 113965, 188290, 227930, 433067, 470725, 569825, 866134, 941450, 1139650, 2165335, 4330670, 10826675, 21653350]

約数ペア:

[(1, 21653350), (2, 10826675), (5, 4330670), (10, 2165335), (19, 1139650), (23, 941450), (25, 866134), (38, 569825), (46, 470725), (50, 433067), (95, 227930), (115, 188290), (190, 113965), (230, 94145), (437, 49550), (475, 45586), (575, 37658), (874, 24775), (950, 22793), (991, 21850), (1150, 18829), (1982, 10925), (2185, 9910), (4370, 4955)]