20824713

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{541}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 37879296

約数和(自身を除く): 17054583

約数列:

[1, 3, 7, 9, 13, 21, 39, 47, 63, 91, 117, 141, 273, 329, 423, 541, 611, 819, 987, 1623, 1833, 2961, 3787, 4277, 4869, 5499, 7033, 11361, 12831, 21099, 25427, 34083, 38493, 49231, 63297, 76281, 147693, 177989, 228843, 330551, 443079, 533967, 991653, 1601901, 2313857, 2974959, 6941571, 20824713]

約数ペア:

[(1, 20824713), (3, 6941571), (7, 2974959), (9, 2313857), (13, 1601901), (21, 991653), (39, 533967), (47, 443079), (63, 330551), (91, 228843), (117, 177989), (141, 147693), (273, 76281), (329, 63297), (423, 49231), (541, 38493), (611, 34083), (819, 25427), (987, 21099), (1623, 12831), (1833, 11361), (2961, 7033), (3787, 5499), (4277, 4869)]