18764872

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{857}}^1$

素因数の和:910

約数の個数: 64

約数和(自身を含む): 44478720

約数和(自身を除く): 25713848

約数列:

[1, 2, 4, 7, 8, 14, 17, 23, 28, 34, 46, 56, 68, 92, 119, 136, 161, 184, 238, 322, 391, 476, 644, 782, 857, 952, 1288, 1564, 1714, 2737, 3128, 3428, 5474, 5999, 6856, 10948, 11998, 14569, 19711, 21896, 23996, 29138, 39422, 47992, 58276, 78844, 101983, 116552, 137977, 157688, 203966, 275954, 335087, 407932, 551908, 670174, 815864, 1103816, 1340348, 2345609, 2680696, 4691218, 9382436, 18764872]

約数ペア:

[(1, 18764872), (2, 9382436), (4, 4691218), (7, 2680696), (8, 2345609), (14, 1340348), (17, 1103816), (23, 815864), (28, 670174), (34, 551908), (46, 407932), (56, 335087), (68, 275954), (92, 203966), (119, 157688), (136, 137977), (161, 116552), (184, 101983), (238, 78844), (322, 58276), (391, 47992), (476, 39422), (644, 29138), (782, 23996), (857, 21896), (952, 19711), (1288, 14569), (1564, 11998), (1714, 10948), (2737, 6856), (3128, 5999), (3428, 5474)]