21327992

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{571}}^1$

素因数の和:636

約数の個数: 64

約数和(自身を含む): 49420800

約数和(自身を除く): 28092808

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 29, 46, 56, 58, 92, 116, 161, 184, 203, 232, 322, 406, 571, 644, 667, 812, 1142, 1288, 1334, 1624, 2284, 2668, 3997, 4568, 4669, 5336, 7994, 9338, 13133, 15988, 16559, 18676, 26266, 31976, 33118, 37352, 52532, 66236, 91931, 105064, 115913, 132472, 183862, 231826, 367724, 380857, 463652, 735448, 761714, 927304, 1523428, 2665999, 3046856, 5331998, 10663996, 21327992]

約数ペア:

[(1, 21327992), (2, 10663996), (4, 5331998), (7, 3046856), (8, 2665999), (14, 1523428), (23, 927304), (28, 761714), (29, 735448), (46, 463652), (56, 380857), (58, 367724), (92, 231826), (116, 183862), (161, 132472), (184, 115913), (203, 105064), (232, 91931), (322, 66236), (406, 52532), (571, 37352), (644, 33118), (667, 31976), (812, 26266), (1142, 18676), (1288, 16559), (1334, 15988), (1624, 13133), (2284, 9338), (2668, 7994), (3997, 5336), (4568, 4669)]