21660506

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1721}}^1$

素因数の和:1790

約数の個数: 32

約数和(自身を含む): 39674880

約数和(自身を除く): 18014374

約数列:

[1, 2, 7, 14, 29, 31, 58, 62, 203, 217, 406, 434, 899, 1721, 1798, 3442, 6293, 12047, 12586, 24094, 49909, 53351, 99818, 106702, 349363, 373457, 698726, 746914, 1547179, 3094358, 10830253, 21660506]

約数ペア:

[(1, 21660506), (2, 10830253), (7, 3094358), (14, 1547179), (29, 746914), (31, 698726), (58, 373457), (62, 349363), (203, 106702), (217, 99818), (406, 53351), (434, 49909), (899, 24094), (1721, 12586), (1798, 12047), (3442, 6293)]