21474365

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 29393280

約数和(自身を除く): 7918915

約数列:

[1, 5, 11, 41, 55, 89, 107, 205, 445, 451, 535, 979, 1177, 2255, 3649, 4387, 4895, 5885, 9523, 18245, 21935, 40139, 47615, 48257, 104753, 200695, 241285, 390443, 523765, 1952215, 4294873, 21474365]

約数ペア:

[(1, 21474365), (5, 4294873), (11, 1952215), (41, 523765), (55, 390443), (89, 241285), (107, 200695), (205, 104753), (445, 48257), (451, 47615), (535, 40139), (979, 21935), (1177, 18245), (2255, 9523), (3649, 5885), (4387, 4895)]