18728115

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1031}}^1$

素因数の和:1219

約数の個数: 32

約数和(自身を含む): 34477056

約数和(自身を除く): 15748941

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 173, 519, 865, 1031, 1211, 2595, 3093, 3633, 5155, 6055, 7217, 15465, 18165, 21651, 36085, 108255, 178363, 535089, 891815, 1248541, 2675445, 3745623, 6242705, 18728115]

約数ペア:

[(1, 18728115), (3, 6242705), (5, 3745623), (7, 2675445), (15, 1248541), (21, 891815), (35, 535089), (105, 178363), (173, 108255), (519, 36085), (865, 21651), (1031, 18165), (1211, 15465), (2595, 7217), (3093, 6055), (3633, 5155)]