21158766

素因数分解:

$2^1\times 3^3\times {\mathrm{53}}^1\times {\mathrm{7393}}^1$

素因数の和:7457

約数の個数: 32

約数和(自身を含む): 47913120

約数和(自身を除く): 26754354

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 106, 159, 318, 477, 954, 1431, 2862, 7393, 14786, 22179, 44358, 66537, 133074, 199611, 391829, 399222, 783658, 1175487, 2350974, 3526461, 7052922, 10579383, 21158766]

約数ペア:

[(1, 21158766), (2, 10579383), (3, 7052922), (6, 3526461), (9, 2350974), (18, 1175487), (27, 783658), (53, 399222), (54, 391829), (106, 199611), (159, 133074), (318, 66537), (477, 44358), (954, 22179), (1431, 14786), (2862, 7393)]