21026145

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{28607}}^1$

素因数の和:28629

約数の個数: 24

約数和(自身を含む): 39135744

約数和(自身を除く): 18109599

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 28607, 85821, 143035, 200249, 429105, 600747, 1001245, 1401743, 3003735, 4205229, 7008715, 21026145]

約数ペア:

[(1, 21026145), (3, 7008715), (5, 4205229), (7, 3003735), (15, 1401743), (21, 1001245), (35, 600747), (49, 429105), (105, 200249), (147, 143035), (245, 85821), (735, 28607)]