21280570

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3613}}^1$

素因数の和:3670

約数の個数: 32

約数和(自身を含む): 41633280

約数和(自身を除く): 20352710

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 589, 1178, 2945, 3613, 5890, 7226, 18065, 36130, 68647, 112003, 137294, 224006, 343235, 560015, 686470, 1120030, 2128057, 4256114, 10640285, 21280570]

約数ペア:

[(1, 21280570), (2, 10640285), (5, 4256114), (10, 2128057), (19, 1120030), (31, 686470), (38, 560015), (62, 343235), (95, 224006), (155, 137294), (190, 112003), (310, 68647), (589, 36130), (1178, 18065), (2945, 7226), (3613, 5890)]