21305382

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:353

約数の個数: 64

約数和(自身を含む): 51093504

約数和(自身を除く): 29788122

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 47, 86, 94, 129, 141, 251, 258, 282, 301, 329, 502, 602, 658, 753, 903, 987, 1506, 1757, 1806, 1974, 2021, 3514, 4042, 5271, 6063, 10542, 10793, 11797, 12126, 14147, 21586, 23594, 28294, 32379, 35391, 42441, 64758, 70782, 75551, 82579, 84882, 151102, 165158, 226653, 247737, 453306, 495474, 507271, 1014542, 1521813, 3043626, 3550897, 7101794, 10652691, 21305382]

約数ペア:

[(1, 21305382), (2, 10652691), (3, 7101794), (6, 3550897), (7, 3043626), (14, 1521813), (21, 1014542), (42, 507271), (43, 495474), (47, 453306), (86, 247737), (94, 226653), (129, 165158), (141, 151102), (251, 84882), (258, 82579), (282, 75551), (301, 70782), (329, 64758), (502, 42441), (602, 35391), (658, 32379), (753, 28294), (903, 23594), (987, 21586), (1506, 14147), (1757, 12126), (1806, 11797), (1974, 10793), (2021, 10542), (3514, 6063), (4042, 5271)]