21227451

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{227}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 33474048

約数和(自身を除く): 12246597

約数列:

[1, 3, 7, 21, 61, 73, 183, 219, 227, 427, 511, 681, 1281, 1533, 1589, 4453, 4767, 13359, 13847, 16571, 31171, 41541, 49713, 93513, 96929, 115997, 290787, 347991, 1010831, 3032493, 7075817, 21227451]

約数ペア:

[(1, 21227451), (3, 7075817), (7, 3032493), (21, 1010831), (61, 347991), (73, 290787), (183, 115997), (219, 96929), (227, 93513), (427, 49713), (511, 41541), (681, 31171), (1281, 16571), (1533, 13847), (1589, 13359), (4453, 4767)]