21290526

素因数分解:

$2^1\times 3^4\times {\mathrm{19}}^1\times {\mathrm{6917}}^1$

素因数の和:6950

約数の個数: 40

約数和(自身を含む): 50224680

約数和(自身を除く): 28934154

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 81, 114, 162, 171, 342, 513, 1026, 1539, 3078, 6917, 13834, 20751, 41502, 62253, 124506, 131423, 186759, 262846, 373518, 394269, 560277, 788538, 1120554, 1182807, 2365614, 3548421, 7096842, 10645263, 21290526]

約数ペア:

[(1, 21290526), (2, 10645263), (3, 7096842), (6, 3548421), (9, 2365614), (18, 1182807), (19, 1120554), (27, 788538), (38, 560277), (54, 394269), (57, 373518), (81, 262846), (114, 186759), (162, 131423), (171, 124506), (342, 62253), (513, 41502), (1026, 20751), (1539, 13834), (3078, 6917)]