19655478

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{241}}^1$

素因数の和:469

約数の個数: 48

約数和(自身を含む): 44849376

約数和(自身を除く): 25193898

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 197, 207, 241, 394, 414, 482, 591, 723, 1182, 1446, 1773, 2169, 3546, 4338, 4531, 5543, 9062, 11086, 13593, 16629, 27186, 33258, 40779, 47477, 49887, 81558, 94954, 99774, 142431, 284862, 427293, 854586, 1091971, 2183942, 3275913, 6551826, 9827739, 19655478]

約数ペア:

[(1, 19655478), (2, 9827739), (3, 6551826), (6, 3275913), (9, 2183942), (18, 1091971), (23, 854586), (46, 427293), (69, 284862), (138, 142431), (197, 99774), (207, 94954), (241, 81558), (394, 49887), (414, 47477), (482, 40779), (591, 33258), (723, 27186), (1182, 16629), (1446, 13593), (1773, 11086), (2169, 9062), (3546, 5543), (4338, 4531)]