131221104

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{390539}}^1$

素因数の和:390557

約数の個数: 40

約数和(自身を含む): 387415680

約数和(自身を除く): 256194576

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 390539, 781078, 1171617, 1562156, 2343234, 2733773, 3124312, 4686468, 5467546, 6248624, 8201319, 9372936, 10935092, 16402638, 18745872, 21870184, 32805276, 43740368, 65610552, 131221104]

約数ペア:

[(1, 131221104), (2, 65610552), (3, 43740368), (4, 32805276), (6, 21870184), (7, 18745872), (8, 16402638), (12, 10935092), (14, 9372936), (16, 8201319), (21, 6248624), (24, 5467546), (28, 4686468), (42, 3124312), (48, 2733773), (56, 2343234), (84, 1562156), (112, 1171617), (168, 781078), (336, 390539)]