21000954

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:319

約数の個数: 48

約数和(自身を含む): 46116000

約数和(自身を除く): 25115046

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 139, 149, 169, 278, 298, 338, 417, 447, 507, 834, 894, 1014, 1807, 1937, 3614, 3874, 5421, 5811, 10842, 11622, 20711, 23491, 25181, 41422, 46982, 50362, 62133, 70473, 75543, 124266, 140946, 151086, 269243, 538486, 807729, 1615458, 3500159, 7000318, 10500477, 21000954]

約数ペア:

[(1, 21000954), (2, 10500477), (3, 7000318), (6, 3500159), (13, 1615458), (26, 807729), (39, 538486), (78, 269243), (139, 151086), (149, 140946), (169, 124266), (278, 75543), (298, 70473), (338, 62133), (417, 50362), (447, 46982), (507, 41422), (834, 25181), (894, 23491), (1014, 20711), (1807, 11622), (1937, 10842), (3614, 5811), (3874, 5421)]