16780554

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{431}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 43130880

約数和(自身を除く): 26350326

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 103, 126, 189, 206, 309, 378, 431, 618, 721, 862, 927, 1293, 1442, 1854, 2163, 2586, 2781, 3017, 3879, 4326, 5562, 6034, 6489, 7758, 9051, 11637, 12978, 18102, 19467, 23274, 27153, 38934, 44393, 54306, 81459, 88786, 133179, 162918, 266358, 310751, 399537, 621502, 799074, 932253, 1198611, 1864506, 2397222, 2796759, 5593518, 8390277, 16780554]

約数ペア:

[(1, 16780554), (2, 8390277), (3, 5593518), (6, 2796759), (7, 2397222), (9, 1864506), (14, 1198611), (18, 932253), (21, 799074), (27, 621502), (42, 399537), (54, 310751), (63, 266358), (103, 162918), (126, 133179), (189, 88786), (206, 81459), (309, 54306), (378, 44393), (431, 38934), (618, 27153), (721, 23274), (862, 19467), (927, 18102), (1293, 12978), (1442, 11637), (1854, 9051), (2163, 7758), (2586, 6489), (2781, 6034), (3017, 5562), (3879, 4326)]