20739941379

素因数分解:

$3^6\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{1721}}^1$

素因数の和:2071

約数の個数: 56

約数和(自身を含む): 31740510144

約数和(自身を除く): 11000568765

約数列:

[1, 3, 9, 27, 61, 81, 183, 243, 271, 549, 729, 813, 1647, 1721, 2439, 4941, 5163, 7317, 14823, 15489, 16531, 21951, 44469, 46467, 49593, 65853, 104981, 139401, 148779, 197559, 314943, 418203, 446337, 466391, 944829, 1254609, 1339011, 1399173, 2834487, 4017033, 4197519, 8503461, 12051099, 12592557, 25510383, 28449851, 37777671, 76531149, 85349553, 113333013, 256048659, 339999039, 768145977, 2304437931, 6913313793, 20739941379]

約数ペア:

[(1, 20739941379), (3, 6913313793), (9, 2304437931), (27, 768145977), (61, 339999039), (81, 256048659), (183, 113333013), (243, 85349553), (271, 76531149), (549, 37777671), (729, 28449851), (813, 25510383), (1647, 12592557), (1721, 12051099), (2439, 8503461), (4941, 4197519), (5163, 4017033), (7317, 2834487), (14823, 1399173), (15489, 1339011), (16531, 1254609), (21951, 944829), (44469, 466391), (46467, 446337), (49593, 418203), (65853, 314943), (104981, 197559), (139401, 148779)]