31355385

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 51815808

約数和(自身を除く): 20460423

約数列:

[1, 3, 5, 15, 43, 129, 173, 215, 281, 519, 645, 843, 865, 1405, 2595, 4215, 7439, 12083, 22317, 36249, 37195, 48613, 60415, 111585, 145839, 181245, 243065, 729195, 2090359, 6271077, 10451795, 31355385]

約数ペア:

[(1, 31355385), (3, 10451795), (5, 6271077), (15, 2090359), (43, 729195), (129, 243065), (173, 181245), (215, 145839), (281, 111585), (519, 60415), (645, 48613), (843, 37195), (865, 36249), (1405, 22317), (2595, 12083), (4215, 7439)]