21545565

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{16139}}^1$

素因数の和:16236

約数の個数: 16

約数和(自身を含む): 34862400

約数和(自身を除く): 13316835

約数列:

[1, 3, 5, 15, 89, 267, 445, 1335, 16139, 48417, 80695, 242085, 1436371, 4309113, 7181855, 21545565]

約数ペア:

[(1, 21545565), (3, 7181855), (5, 4309113), (15, 1436371), (89, 242085), (267, 80695), (445, 48417), (1335, 16139)]