21132176

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{359}}^1$

素因数の和:663

約数の個数: 40

約数和(自身を含む): 44372160

約数和(自身を除く): 23239984

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 283, 359, 566, 718, 1132, 1436, 2264, 2872, 3679, 4528, 4667, 5744, 7358, 9334, 14716, 18668, 29432, 37336, 58864, 74672, 101597, 203194, 406388, 812776, 1320761, 1625552, 2641522, 5283044, 10566088, 21132176]

約数ペア:

[(1, 21132176), (2, 10566088), (4, 5283044), (8, 2641522), (13, 1625552), (16, 1320761), (26, 812776), (52, 406388), (104, 203194), (208, 101597), (283, 74672), (359, 58864), (566, 37336), (718, 29432), (1132, 18668), (1436, 14716), (2264, 9334), (2872, 7358), (3679, 5744), (4528, 4667)]