20751738

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6959}}^1$

素因数の和:7042

約数の個数: 32

約数和(自身を含む): 48107520

約数和(自身を除く): 27355782

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 71, 142, 213, 426, 497, 994, 1491, 2982, 6959, 13918, 20877, 41754, 48713, 97426, 146139, 292278, 494089, 988178, 1482267, 2964534, 3458623, 6917246, 10375869, 20751738]

約数ペア:

[(1, 20751738), (2, 10375869), (3, 6917246), (6, 3458623), (7, 2964534), (14, 1482267), (21, 988178), (42, 494089), (71, 292278), (142, 146139), (213, 97426), (426, 48713), (497, 41754), (994, 20877), (1491, 13918), (2982, 6959)]