21255738

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1301}}^1$

素因数の和:1702

約数の個数: 32

約数和(自身を含む): 48746880

約数和(自身を除く): 27491142

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 389, 778, 1167, 1301, 2334, 2602, 2723, 3903, 5446, 7806, 8169, 9107, 16338, 18214, 27321, 54642, 506089, 1012178, 1518267, 3036534, 3542623, 7085246, 10627869, 21255738]

約数ペア:

[(1, 21255738), (2, 10627869), (3, 7085246), (6, 3542623), (7, 3036534), (14, 1518267), (21, 1012178), (42, 506089), (389, 54642), (778, 27321), (1167, 18214), (1301, 16338), (2334, 9107), (2602, 8169), (2723, 7806), (3903, 5446)]