21623235

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4463}}^1$

素因数の和:4507

約数の個数: 32

約数和(自身を含む): 38568960

約数和(自身を除く): 16945725

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 323, 969, 1615, 4463, 4845, 13389, 22315, 66945, 75871, 84797, 227613, 254391, 379355, 423985, 1138065, 1271955, 1441549, 4324647, 7207745, 21623235]

約数ペア:

[(1, 21623235), (3, 7207745), (5, 4324647), (15, 1441549), (17, 1271955), (19, 1138065), (51, 423985), (57, 379355), (85, 254391), (95, 227613), (255, 84797), (285, 75871), (323, 66945), (969, 22315), (1615, 13389), (4463, 4845)]