81953529

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 132280128

約数和(自身を除く): 50326599

約数列:

[1, 3, 7, 21, 49, 53, 67, 147, 157, 159, 201, 371, 469, 471, 1099, 1113, 1407, 2597, 3283, 3297, 3551, 7693, 7791, 8321, 9849, 10519, 10653, 23079, 24857, 24963, 31557, 58247, 73633, 74571, 173999, 174741, 220899, 407729, 515431, 521997, 557507, 1223187, 1546293, 1672521, 3902549, 11707647, 27317843, 81953529]

約数ペア:

[(1, 81953529), (3, 27317843), (7, 11707647), (21, 3902549), (49, 1672521), (53, 1546293), (67, 1223187), (147, 557507), (157, 521997), (159, 515431), (201, 407729), (371, 220899), (469, 174741), (471, 173999), (1099, 74571), (1113, 73633), (1407, 58247), (2597, 31557), (3283, 24963), (3297, 24857), (3551, 23079), (7693, 10653), (7791, 10519), (8321, 9849)]