21172736

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{3181}}^1$

素因数の和:3212

約数の個数: 40

約数和(自身を含む): 45572604

約数和(自身を除く): 24399868

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 3181, 3328, 6362, 6656, 12724, 25448, 41353, 50896, 82706, 101792, 165412, 203584, 330824, 407168, 661648, 814336, 1323296, 1628672, 2646592, 5293184, 10586368, 21172736]

約数ペア:

[(1, 21172736), (2, 10586368), (4, 5293184), (8, 2646592), (13, 1628672), (16, 1323296), (26, 814336), (32, 661648), (52, 407168), (64, 330824), (104, 203584), (128, 165412), (208, 101792), (256, 82706), (416, 50896), (512, 41353), (832, 25448), (1664, 12724), (3181, 6656), (3328, 6362)]