28019865

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1\times {\mathrm{337}}^1$

素因数の和:609

約数の個数: 32

約数和(自身を含む): 47114496

約数和(自身を除く): 19094631

約数列:

[1, 3, 5, 15, 23, 69, 115, 241, 337, 345, 723, 1011, 1205, 1685, 3615, 5055, 5543, 7751, 16629, 23253, 27715, 38755, 81217, 83145, 116265, 243651, 406085, 1218255, 1867991, 5603973, 9339955, 28019865]

約数ペア:

[(1, 28019865), (3, 9339955), (5, 5603973), (15, 1867991), (23, 1218255), (69, 406085), (115, 243651), (241, 116265), (337, 83145), (345, 81217), (723, 38755), (1011, 27715), (1205, 23253), (1685, 16629), (3615, 7751), (5055, 5543)]