19435689

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1249}}^1$

素因数の和:1294

約数の個数: 48

約数和(自身を含む): 36400000

約数和(自身を除く): 16964311

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 741, 819, 1197, 1249, 1729, 2223, 3747, 5187, 8743, 11241, 15561, 16237, 23731, 26229, 48711, 71193, 78687, 113659, 146133, 166117, 213579, 308503, 340977, 498351, 925509, 1022931, 1495053, 2159521, 2776527, 6478563, 19435689]

約数ペア:

[(1, 19435689), (3, 6478563), (7, 2776527), (9, 2159521), (13, 1495053), (19, 1022931), (21, 925509), (39, 498351), (57, 340977), (63, 308503), (91, 213579), (117, 166117), (133, 146133), (171, 113659), (247, 78687), (273, 71193), (399, 48711), (741, 26229), (819, 23731), (1197, 16237), (1249, 15561), (1729, 11241), (2223, 8743), (3747, 5187)]