26891985

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{241}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 44466048

約数和(自身を除く): 17574063

約数列:

[1, 3, 5, 15, 43, 129, 173, 215, 241, 519, 645, 723, 865, 1205, 2595, 3615, 7439, 10363, 22317, 31089, 37195, 41693, 51815, 111585, 125079, 155445, 208465, 625395, 1792799, 5378397, 8963995, 26891985]

約数ペア:

[(1, 26891985), (3, 8963995), (5, 5378397), (15, 1792799), (43, 625395), (129, 208465), (173, 155445), (215, 125079), (241, 111585), (519, 51815), (645, 41693), (723, 37195), (865, 31089), (1205, 22317), (2595, 10363), (3615, 7439)]