16990905

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2897}}^1$

素因数の和:2945

約数の個数: 32

約数和(自身を含む): 30046464

約数和(自身を除く): 13055559

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 2897, 5865, 8691, 14485, 43455, 49249, 66631, 147747, 199893, 246245, 333155, 738735, 999465, 1132727, 3398181, 5663635, 16990905]

約数ペア:

[(1, 16990905), (3, 5663635), (5, 3398181), (15, 1132727), (17, 999465), (23, 738735), (51, 333155), (69, 246245), (85, 199893), (115, 147747), (255, 66631), (345, 49249), (391, 43455), (1173, 14485), (1955, 8691), (2897, 5865)]