20402523

素因数分解:

$3^7\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 32275200

約数和(自身を除く): 11872677

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 491, 513, 729, 1473, 1539, 2187, 4419, 4617, 9329, 13257, 13851, 27987, 39771, 41553, 83961, 119313, 251883, 357939, 755649, 1073817, 2266947, 6800841, 20402523]

約数ペア:

[(1, 20402523), (3, 6800841), (9, 2266947), (19, 1073817), (27, 755649), (57, 357939), (81, 251883), (171, 119313), (243, 83961), (491, 41553), (513, 39771), (729, 27987), (1473, 13851), (1539, 13257), (2187, 9329), (4419, 4617)]