21155538

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1847}}^1$

素因数の和:1958

約数の個数: 32

約数和(自身を含む): 44706816

約数和(自身を除く): 23551278

約数列:

[1, 2, 3, 6, 23, 46, 69, 83, 138, 166, 249, 498, 1847, 1909, 3694, 3818, 5541, 5727, 11082, 11454, 42481, 84962, 127443, 153301, 254886, 306602, 459903, 919806, 3525923, 7051846, 10577769, 21155538]

約数ペア:

[(1, 21155538), (2, 10577769), (3, 7051846), (6, 3525923), (23, 919806), (46, 459903), (69, 306602), (83, 254886), (138, 153301), (166, 127443), (249, 84962), (498, 42481), (1847, 11454), (1909, 11082), (3694, 5727), (3818, 5541)]