21930285

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 39106368

約数和(自身を除く): 17176083

約数列:

[1, 3, 5, 13, 15, 39, 41, 65, 123, 169, 195, 205, 211, 507, 533, 615, 633, 845, 1055, 1599, 2535, 2665, 2743, 3165, 6929, 7995, 8229, 8651, 13715, 20787, 25953, 34645, 35659, 41145, 43255, 103935, 106977, 112463, 129765, 178295, 337389, 534885, 562315, 1462019, 1686945, 4386057, 7310095, 21930285]

約数ペア:

[(1, 21930285), (3, 7310095), (5, 4386057), (13, 1686945), (15, 1462019), (39, 562315), (41, 534885), (65, 337389), (123, 178295), (169, 129765), (195, 112463), (205, 106977), (211, 103935), (507, 43255), (533, 41145), (615, 35659), (633, 34645), (845, 25953), (1055, 20787), (1599, 13715), (2535, 8651), (2665, 8229), (2743, 7995), (3165, 6929)]