21137555838

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{11704073}}^1$

素因数の和:11704128

約数の個数: 32

約数和(自身を含む): 49438008576

約数和(自身を除く): 28300452738

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 129, 258, 301, 602, 903, 1806, 11704073, 23408146, 35112219, 70224438, 81928511, 163857022, 245785533, 491571066, 503275139, 1006550278, 1509825417, 3019650834, 3522925973, 7045851946, 10568777919, 21137555838]

約数ペア:

[(1, 21137555838), (2, 10568777919), (3, 7045851946), (6, 3522925973), (7, 3019650834), (14, 1509825417), (21, 1006550278), (42, 503275139), (43, 491571066), (86, 245785533), (129, 163857022), (258, 81928511), (301, 70224438), (602, 35112219), (903, 23408146), (1806, 11704073)]