21507738

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{16519}}^1$

素因数の和:16562

約数の個数: 32

約数和(自身を含む): 50749440

約数和(自身を除く): 29241702

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 93, 186, 217, 434, 651, 1302, 16519, 33038, 49557, 99114, 115633, 231266, 346899, 512089, 693798, 1024178, 1536267, 3072534, 3584623, 7169246, 10753869, 21507738]

約数ペア:

[(1, 21507738), (2, 10753869), (3, 7169246), (6, 3584623), (7, 3072534), (14, 1536267), (21, 1024178), (31, 693798), (42, 512089), (62, 346899), (93, 231266), (186, 115633), (217, 99114), (434, 49557), (651, 33038), (1302, 16519)]