215683384

素因数分解:

$2^3\times 7^1\times {\mathrm{389}}^1\times {\mathrm{9901}}^1$

素因数の和:10303

約数の個数: 32

約数和(自身を含む): 463413600

約数和(自身を除く): 247730216

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 389, 778, 1556, 2723, 3112, 5446, 9901, 10892, 19802, 21784, 39604, 69307, 79208, 138614, 277228, 554456, 3851489, 7702978, 15405956, 26960423, 30811912, 53920846, 107841692, 215683384]

約数ペア:

[(1, 215683384), (2, 107841692), (4, 53920846), (7, 30811912), (8, 26960423), (14, 15405956), (28, 7702978), (56, 3851489), (389, 554456), (778, 277228), (1556, 138614), (2723, 79208), (3112, 69307), (5446, 39604), (9901, 21784), (10892, 19802)]