21424065

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{607}}^1$

素因数の和:809

約数の個数: 32

約数和(自身を含む): 37180416

約数和(自身を除く): 15756351

約数列:

[1, 3, 5, 13, 15, 39, 65, 181, 195, 543, 607, 905, 1821, 2353, 2715, 3035, 7059, 7891, 9105, 11765, 23673, 35295, 39455, 109867, 118365, 329601, 549335, 1428271, 1648005, 4284813, 7141355, 21424065]

約数ペア:

[(1, 21424065), (3, 7141355), (5, 4284813), (13, 1648005), (15, 1428271), (39, 549335), (65, 329601), (181, 118365), (195, 109867), (543, 39455), (607, 35295), (905, 23673), (1821, 11765), (2353, 9105), (2715, 7891), (3035, 7059)]