2157998409

素因数分解:

$3^3\times 7^1\times {\mathrm{2791}}^1\times {\mathrm{4091}}^1$

素因数の和:6898

約数の個数: 32

約数和(自身を含む): 3655956480

約数和(自身を除く): 1497958071

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 2791, 4091, 8373, 12273, 19537, 25119, 28637, 36819, 58611, 75357, 85911, 110457, 175833, 257733, 527499, 773199, 11417981, 34253943, 79925867, 102761829, 239777601, 308285487, 719332803, 2157998409]

約数ペア:

[(1, 2157998409), (3, 719332803), (7, 308285487), (9, 239777601), (21, 102761829), (27, 79925867), (63, 34253943), (189, 11417981), (2791, 773199), (4091, 527499), (8373, 257733), (12273, 175833), (19537, 110457), (25119, 85911), (28637, 75357), (36819, 58611)]