20817128

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{1693}}^1$

素因数の和:1781

約数の個数: 32

約数和(自身を含む): 41164200

約数和(自身を除く): 20347072

約数列:

[1, 2, 4, 8, 29, 53, 58, 106, 116, 212, 232, 424, 1537, 1693, 3074, 3386, 6148, 6772, 12296, 13544, 49097, 89729, 98194, 179458, 196388, 358916, 392776, 717832, 2602141, 5204282, 10408564, 20817128]

約数ペア:

[(1, 20817128), (2, 10408564), (4, 5204282), (8, 2602141), (29, 717832), (53, 392776), (58, 358916), (106, 196388), (116, 179458), (212, 98194), (232, 89729), (424, 49097), (1537, 13544), (1693, 12296), (3074, 6772), (3386, 6148)]