21681024

素因数分解:

$2^7\times 3^1\times {\mathrm{131}}^1\times {\mathrm{431}}^1$

素因数の和:579

約数の個数: 64

約数和(自身を含む): 58164480

約数和(自身を除く): 36483456

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 131, 192, 262, 384, 393, 431, 524, 786, 862, 1048, 1293, 1572, 1724, 2096, 2586, 3144, 3448, 4192, 5172, 6288, 6896, 8384, 10344, 12576, 13792, 16768, 20688, 25152, 27584, 41376, 50304, 55168, 56461, 82752, 112922, 165504, 169383, 225844, 338766, 451688, 677532, 903376, 1355064, 1806752, 2710128, 3613504, 5420256, 7227008, 10840512, 21681024]

約数ペア:

[(1, 21681024), (2, 10840512), (3, 7227008), (4, 5420256), (6, 3613504), (8, 2710128), (12, 1806752), (16, 1355064), (24, 903376), (32, 677532), (48, 451688), (64, 338766), (96, 225844), (128, 169383), (131, 165504), (192, 112922), (262, 82752), (384, 56461), (393, 55168), (431, 50304), (524, 41376), (786, 27584), (862, 25152), (1048, 20688), (1293, 16768), (1572, 13792), (1724, 12576), (2096, 10344), (2586, 8384), (3144, 6896), (3448, 6288), (4192, 5172)]