20912643

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{439}}^1$

素因数の和:591

約数の個数: 24

約数和(自身を含む): 31116800

約数和(自身を除く): 10204157

約数列:

[1, 3, 9, 67, 79, 201, 237, 439, 603, 711, 1317, 3951, 5293, 15879, 29413, 34681, 47637, 88239, 104043, 264717, 312129, 2323627, 6970881, 20912643]

約数ペア:

[(1, 20912643), (3, 6970881), (9, 2323627), (67, 312129), (79, 264717), (201, 104043), (237, 88239), (439, 47637), (603, 34681), (711, 29413), (1317, 15879), (3951, 5293)]