20993931

素因数分解:

$3^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{983}}^1$

素因数の和:1112

約数の個数: 32

約数和(自身を含む): 35896320

約数和(自身を除く): 14902389

約数列:

[1, 3, 7, 9, 21, 27, 63, 113, 189, 339, 791, 983, 1017, 2373, 2949, 3051, 6881, 7119, 8847, 20643, 21357, 26541, 61929, 111079, 185787, 333237, 777553, 999711, 2332659, 2999133, 6997977, 20993931]

約数ペア:

[(1, 20993931), (3, 6997977), (7, 2999133), (9, 2332659), (21, 999711), (27, 777553), (63, 333237), (113, 185787), (189, 111079), (339, 61929), (791, 26541), (983, 21357), (1017, 20643), (2373, 8847), (2949, 7119), (3051, 6881)]