221387992

素因数分解:

$2^3\times 7^1\times {\mathrm{523}}^1\times {\mathrm{7559}}^1$

素因数の和:8095

約数の個数: 32

約数和(自身を含む): 475372800

約数和(自身を除く): 253984808

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 523, 1046, 2092, 3661, 4184, 7322, 7559, 14644, 15118, 29288, 30236, 52913, 60472, 105826, 211652, 423304, 3953357, 7906714, 15813428, 27673499, 31626856, 55346998, 110693996, 221387992]

約数ペア:

[(1, 221387992), (2, 110693996), (4, 55346998), (7, 31626856), (8, 27673499), (14, 15813428), (28, 7906714), (56, 3953357), (523, 423304), (1046, 211652), (2092, 105826), (3661, 60472), (4184, 52913), (7322, 30236), (7559, 29288), (14644, 15118)]