20784438

素因数分解:

$2^1\times 3^4\times {\mathrm{17}}^1\times {\mathrm{7547}}^1$

素因数の和:7578

約数の個数: 40

約数和(自身を含む): 49318632

約数和(自身を除く): 28534194

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 81, 102, 153, 162, 306, 459, 918, 1377, 2754, 7547, 15094, 22641, 45282, 67923, 128299, 135846, 203769, 256598, 384897, 407538, 611307, 769794, 1154691, 1222614, 2309382, 3464073, 6928146, 10392219, 20784438]

約数ペア:

[(1, 20784438), (2, 10392219), (3, 6928146), (6, 3464073), (9, 2309382), (17, 1222614), (18, 1154691), (27, 769794), (34, 611307), (51, 407538), (54, 384897), (81, 256598), (102, 203769), (153, 135846), (162, 128299), (306, 67923), (459, 45282), (918, 22641), (1377, 15094), (2754, 7547)]