20421824

素因数分解:

$2^6\times {\mathrm{61}}^1\times {\mathrm{5231}}^1$

素因数の和:5304

約数の個数: 28

約数和(自身を含む): 41196768

約数和(自身を除く): 20774944

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 244, 488, 976, 1952, 3904, 5231, 10462, 20924, 41848, 83696, 167392, 319091, 334784, 638182, 1276364, 2552728, 5105456, 10210912, 20421824]

約数ペア:

[(1, 20421824), (2, 10210912), (4, 5105456), (8, 2552728), (16, 1276364), (32, 638182), (61, 334784), (64, 319091), (122, 167392), (244, 83696), (488, 41848), (976, 20924), (1952, 10462), (3904, 5231)]