221569971

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{631}}^1\times {\mathrm{727}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 353353728

約数和(自身を除く): 131783757

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 631, 727, 1893, 2181, 4417, 5089, 13251, 14513, 15267, 16721, 43539, 50163, 101591, 117047, 304773, 351141, 458737, 1376211, 3211159, 9633477, 10550951, 31652853, 73856657, 221569971]

約数ペア:

[(1, 221569971), (3, 73856657), (7, 31652853), (21, 10550951), (23, 9633477), (69, 3211159), (161, 1376211), (483, 458737), (631, 351141), (727, 304773), (1893, 117047), (2181, 101591), (4417, 50163), (5089, 43539), (13251, 16721), (14513, 15267)]