21017236

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{18181}}^1$

素因数の和:18219

約数の個数: 18

約数和(自身を含む): 39073118

約数和(自身を除く): 18055882

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 18181, 36362, 72724, 309077, 618154, 1236308, 5254309, 10508618, 21017236]

約数ペア:

[(1, 21017236), (2, 10508618), (4, 5254309), (17, 1236308), (34, 618154), (68, 309077), (289, 72724), (578, 36362), (1156, 18181)]