213479860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{9421}}^1$

素因数の和:9544

約数の個数: 48

約数和(自身を含む): 493863552

約数和(自身を除く): 280383692

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 1030, 1133, 2060, 2266, 4532, 5665, 9421, 11330, 18842, 22660, 37684, 47105, 94210, 103631, 188420, 207262, 414524, 518155, 970363, 1036310, 1940726, 2072620, 3881452, 4851815, 9703630, 10673993, 19407260, 21347986, 42695972, 53369965, 106739930, 213479860]

約数ペア:

[(1, 213479860), (2, 106739930), (4, 53369965), (5, 42695972), (10, 21347986), (11, 19407260), (20, 10673993), (22, 9703630), (44, 4851815), (55, 3881452), (103, 2072620), (110, 1940726), (206, 1036310), (220, 970363), (412, 518155), (515, 414524), (1030, 207262), (1133, 188420), (2060, 103631), (2266, 94210), (4532, 47105), (5665, 37684), (9421, 22660), (11330, 18842)]