21846513

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{397}}^1$

素因数の和:513

約数の個数: 32

約数和(自身を含む): 33699456

約数和(自身を除く): 11852943

約数列:

[1, 3, 13, 17, 39, 51, 83, 221, 249, 397, 663, 1079, 1191, 1411, 3237, 4233, 5161, 6749, 15483, 18343, 20247, 32951, 55029, 87737, 98853, 263211, 428363, 560167, 1285089, 1680501, 7282171, 21846513]

約数ペア:

[(1, 21846513), (3, 7282171), (13, 1680501), (17, 1285089), (39, 560167), (51, 428363), (83, 263211), (221, 98853), (249, 87737), (397, 55029), (663, 32951), (1079, 20247), (1191, 18343), (1411, 15483), (3237, 6749), (4233, 5161)]