20919712

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{577}}^1$

素因数の和:701

約数の個数: 48

約数和(自身を含む): 45444672

約数和(自身を除く): 24524960

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 103, 176, 206, 352, 412, 577, 824, 1133, 1154, 1648, 2266, 2308, 3296, 4532, 4616, 6347, 9064, 9232, 12694, 18128, 18464, 25388, 36256, 50776, 59431, 101552, 118862, 203104, 237724, 475448, 653741, 950896, 1307482, 1901792, 2614964, 5229928, 10459856, 20919712]

約数ペア:

[(1, 20919712), (2, 10459856), (4, 5229928), (8, 2614964), (11, 1901792), (16, 1307482), (22, 950896), (32, 653741), (44, 475448), (88, 237724), (103, 203104), (176, 118862), (206, 101552), (352, 59431), (412, 50776), (577, 36256), (824, 25388), (1133, 18464), (1154, 18128), (1648, 12694), (2266, 9232), (2308, 9064), (3296, 6347), (4532, 4616)]