21412525

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{739}}^1$

素因数の和:829

約数の個数: 24

約数和(自身を含む): 28445600

約数和(自身を除く): 7033075

約数列:

[1, 5, 19, 25, 61, 95, 305, 475, 739, 1159, 1525, 3695, 5795, 14041, 18475, 28975, 45079, 70205, 225395, 351025, 856501, 1126975, 4282505, 21412525]

約数ペア:

[(1, 21412525), (5, 4282505), (19, 1126975), (25, 856501), (61, 351025), (95, 225395), (305, 70205), (475, 45079), (739, 28975), (1159, 18475), (1525, 14041), (3695, 5795)]