21157318

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{16607}}^1$

素因数の和:16636

約数の個数: 24

約数和(自身を含む): 39759552

約数和(自身を除く): 18602234

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 637, 1274, 16607, 33214, 116249, 215891, 232498, 431782, 813743, 1511237, 1627486, 3022474, 10578659, 21157318]

約数ペア:

[(1, 21157318), (2, 10578659), (7, 3022474), (13, 1627486), (14, 1511237), (26, 813743), (49, 431782), (91, 232498), (98, 215891), (182, 116249), (637, 33214), (1274, 16607)]