20020994

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{641}}^1$

素因数の和:770

約数の個数: 32

約数和(自身を含む): 36239616

約数和(自身を除く): 16218622

約数列:

[1, 2, 7, 14, 23, 46, 97, 161, 194, 322, 641, 679, 1282, 1358, 2231, 4462, 4487, 8974, 14743, 15617, 29486, 31234, 62177, 103201, 124354, 206402, 435239, 870478, 1430071, 2860142, 10010497, 20020994]

約数ペア:

[(1, 20020994), (2, 10010497), (7, 2860142), (14, 1430071), (23, 870478), (46, 435239), (97, 206402), (161, 124354), (194, 103201), (322, 62177), (641, 31234), (679, 29486), (1282, 15617), (1358, 14743), (2231, 8974), (4462, 4487)]