21492786

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1289}}^1$

素因数の和:1698

約数の個数: 32

約数和(自身を含む): 49288320

約数和(自身を除く): 27795534

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 397, 794, 1191, 1289, 2382, 2578, 2779, 3867, 5558, 7734, 8337, 9023, 16674, 18046, 27069, 54138, 511733, 1023466, 1535199, 3070398, 3582131, 7164262, 10746393, 21492786]

約数ペア:

[(1, 21492786), (2, 10746393), (3, 7164262), (6, 3582131), (7, 3070398), (14, 1535199), (21, 1023466), (42, 511733), (397, 54138), (794, 27069), (1191, 18046), (1289, 16674), (2382, 9023), (2578, 8337), (2779, 7734), (3867, 5558)]