21649208

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20347}}^1$

素因数の和:20379

約数の個数: 32

約数和(自身を含む): 48835200

約数和(自身を除く): 27185992

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 20347, 40694, 81388, 142429, 162776, 284858, 386593, 569716, 773186, 1139432, 1546372, 2706151, 3092744, 5412302, 10824604, 21649208]

約数ペア:

[(1, 21649208), (2, 10824604), (4, 5412302), (7, 3092744), (8, 2706151), (14, 1546372), (19, 1139432), (28, 773186), (38, 569716), (56, 386593), (76, 284858), (133, 162776), (152, 142429), (266, 81388), (532, 40694), (1064, 20347)]